diff --git a/IoListTestingWindow.xaml b/IoListTestingWindow.xaml
index 52e7c5e2..055bc12b 100644
--- a/IoListTestingWindow.xaml
+++ b/IoListTestingWindow.xaml
@@ -1,216 +1,181 @@
 <Window x:Class="ArIED61850Tester.IoListTestingWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:io="clr-namespace:ArIED61850Tester.Models.IoTesting"
         Title="ARSAS - IO List Testing"
         Height="900" Width="1500" MinHeight="760" MinWidth="1180"
         WindowStartupLocation="CenterOwner" WindowState="Maximized"
         Background="{StaticResource AppBackgroundGradient}"
         FontFamily="Aptos, Segoe UI Variable Text, Segoe UI, Calibri"
         Icon="Assets/app-icon.ico" Closing="Window_Closing">
-    <Grid Margin="12">
+    <Window.Resources>
+        <Style x:Key="FatGridText" TargetType="TextBlock">
+            <Setter Property="VerticalAlignment" Value="Center"/>
+            <Setter Property="Foreground" Value="{StaticResource Ink}"/>
+            <Setter Property="FontSize" Value="12.2"/>
+            <Setter Property="TextTrimming" Value="CharacterEllipsis"/>
+        </Style>
+        <Style TargetType="DataGridCell">
+            <Setter Property="Padding" Value="9,7"/>
+            <Setter Property="BorderThickness" Value="0,0,0,1"/>
+            <Setter Property="BorderBrush" Value="#E8EDF5"/>
+            <Setter Property="Background" Value="Transparent"/>
+            <Setter Property="VerticalContentAlignment" Value="Center"/>
+            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
+        </Style>
+        <Style TargetType="DataGridColumnHeader">
+            <Setter Property="Height" Value="38"/>
+            <Setter Property="Padding" Value="9,0"/>
+            <Setter Property="Background" Value="#F4F7FB"/>
+            <Setter Property="Foreground" Value="#617087"/>
+            <Setter Property="FontSize" Value="10.5"/>
+            <Setter Property="FontWeight" Value="SemiBold"/>
+            <Setter Property="BorderThickness" Value="0,0,0,1"/>
+            <Setter Property="BorderBrush" Value="#DCE4EF"/>
+            <Setter Property="HorizontalContentAlignment" Value="Left"/>
+        </Style>
+        <Style TargetType="DataGridRow">
+            <Setter Property="MinHeight" Value="48"/>
+            <Setter Property="Background" Value="#FFFFFF"/>
+            <Setter Property="BorderThickness" Value="0"/>
+            <Style.Triggers>
+                <Trigger Property="IsMouseOver" Value="True"><Setter Property="Background" Value="#F5F8FD"/></Trigger>
+                <Trigger Property="IsSelected" Value="True"><Setter Property="Background" Value="#EEF4FF"/></Trigger>
+            </Style.Triggers>
+        </Style>
+    </Window.Resources>
+
+    <Grid Margin="14">
         <Grid.RowDefinitions>
-            <RowDefinition Height="Auto"/>
-            <RowDefinition Height="10"/>
-            <RowDefinition Height="*"/>
-            <RowDefinition Height="10"/>
-            <RowDefinition Height="Auto"/>
+            <RowDefinition Height="Auto"/><RowDefinition Height="12"/><RowDefinition Height="*"/><RowDefinition Height="10"/><RowDefinition Height="Auto"/>
         </Grid.RowDefinitions>
 
-        <Border Grid.Row="0" Style="{StaticResource Card}" Padding="14,10">
+        <Border Grid.Row="0" Style="{StaticResource Card}" Padding="16,12">
             <Grid>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="*"/>
-                    <ColumnDefinition Width="Auto"/>
-                </Grid.ColumnDefinitions>
-                <StackPanel>
-                    <TextBlock Text="IO LIST TESTING" Style="{StaticResource MicroLabel}" Foreground="{StaticResource Accent}"/>
-                    <TextBlock Text="{Binding Project.ProjectName}" FontSize="18" FontWeight="SemiBold" Foreground="{StaticResource Ink}"/>
-                    <TextBlock Text="Workbook-driven connect · configured-report-first monitoring · read-only OFF → ON → OFF evidence"
-                               Style="{StaticResource Caption}" Margin="0,2,0,0"/>
+                <Grid.ColumnDefinitions><ColumnDefinition Width="*"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions>
+                <StackPanel VerticalAlignment="Center">
+                    <TextBlock Text="IO LIST FAT" Style="{StaticResource MicroLabel}" Foreground="{StaticResource Accent}"/>
+                    <TextBlock Text="{Binding Project.ProjectName}" FontSize="18" FontWeight="SemiBold" Foreground="{StaticResource Ink}" Margin="0,2,0,0"/>
+                    <TextBlock Text="Workbook scope · report-first acquisition · relay-timestamped evidence" Style="{StaticResource Caption}" Margin="0,3,0,0"/>
                 </StackPanel>
                 <WrapPanel Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Right">
-                    <Border Background="{StaticResource SoftBlue}" CornerRadius="14" Padding="12,7" Margin="0,0,8,0">
-                        <TextBlock Text="{Binding ProjectSummary}" FontSize="12" Foreground="{StaticResource Ink}"/>
-                    </Border>
-                    <Button Content="Save Progress" Style="{StaticResource SoftButton}" Padding="11,7"
-                            Click="SaveProgress_Click" Margin="0,0,6,0"/>
-                    <Button Content="Export Excel" Style="{StaticResource SoftButton}" Padding="11,7"
-                            Click="ExportExcel_Click" Margin="0,0,6,0"/>
-                    <Button Content="Export PDF" Style="{StaticResource SoftButton}" Padding="11,7"
-                            Click="ExportPdf_Click" Margin="0,0,6,0"/>
-                    <Button Content="Export .arsas" Style="{StaticResource PrimaryButton}" Padding="11,7"
-                            Click="ExportHandover_Click" Margin="0,0,6,0"/>
-                    <Button Content="Return to Engineering" Style="{StaticResource SoftButton}" Click="ReturnToEngineering_Click"/>
+                    <Border Background="#F1F5FB" CornerRadius="14" Padding="12,7" Margin="0,0,9,0"><TextBlock Text="{Binding ProjectSummary}" FontSize="11.8" Foreground="{StaticResource Ink}"/></Border>
+                    <Button Content="Save" Style="{StaticResource SoftButton}" Padding="11,7" Click="SaveProgress_Click" Margin="0,0,6,0"/>
+                    <Button Content="Excel" Style="{StaticResource SoftButton}" Padding="11,7" Click="ExportExcel_Click" Margin="0,0,6,0"/>
+                    <Button Content="PDF" Style="{StaticResource SoftButton}" Padding="11,7" Click="ExportPdf_Click" Margin="0,0,6,0"/>
+                    <Button Content="Export .arsas" Style="{StaticResource PrimaryButton}" Padding="12,7" Click="ExportHandover_Click" Margin="0,0,6,0"/>
+                    <Button Content="Engineering" Style="{StaticResource SoftButton}" Padding="11,7" Click="ReturnToEngineering_Click"/>
                 </WrapPanel>
             </Grid>
         </Border>
 
         <Grid Grid.Row="2">
-            <Grid.ColumnDefinitions>
-                <ColumnDefinition Width="286"/>
-                <ColumnDefinition Width="10"/>
-                <ColumnDefinition Width="*"/>
-            </Grid.ColumnDefinitions>
-
+            <Grid.ColumnDefinitions><ColumnDefinition Width="304"/><ColumnDefinition Width="12"/><ColumnDefinition Width="*"/></Grid.ColumnDefinitions>
             <Border Grid.Column="0" Style="{StaticResource Card}" Padding="10">
                 <DockPanel>
-                    <StackPanel DockPanel.Dock="Top" Margin="4,2,4,10">
-                        <TextBlock Text="IED TEST PLAN" Style="{StaticResource MicroLabel}"/>
-                        <TextBlock Text="Only IEDs imported from the workbook" Style="{StaticResource Caption}" Margin="0,2,0,0"/>
-                    </StackPanel>
-                    <ListBox ItemsSource="{Binding Project.Ieds}" SelectedItem="{Binding SelectedIed, Mode=TwoWay}"
-                             IsEnabled="{Binding CanSelectIed}"
-                             BorderThickness="0" Background="Transparent" HorizontalContentAlignment="Stretch"
-                             ScrollViewer.HorizontalScrollBarVisibility="Disabled">
+                    <Grid DockPanel.Dock="Top" Margin="5,3,5,11">
+                        <Grid.ColumnDefinitions><ColumnDefinition Width="*"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions>
+                        <StackPanel><TextBlock Text="IED EXPLORER" Style="{StaticResource MicroLabel}"/><TextBlock Text="Workbook devices" Style="{StaticResource Caption}" Margin="0,2,0,0"/></StackPanel>
+                        <Border Grid.Column="1" Background="#F1F5FB" CornerRadius="12" Padding="8,4" VerticalAlignment="Center"><TextBlock Text="{Binding Project.Ieds.Count}" FontWeight="SemiBold" FontSize="11" Foreground="{StaticResource Ink}"/></Border>
+                    </Grid>
+                    <ListBox ItemsSource="{Binding Project.Ieds}" SelectedItem="{Binding SelectedIed, Mode=TwoWay}" IsEnabled="{Binding CanSelectIed}" BorderThickness="0" Background="Transparent" HorizontalContentAlignment="Stretch" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
                         <ListBox.ItemContainerStyle>
                             <Style TargetType="ListBoxItem">
-                                <Setter Property="Padding" Value="0"/>
-                                <Setter Property="Margin" Value="0,0,0,7"/>
-                                <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
-                                <Setter Property="Background" Value="Transparent"/>
-                                <Setter Property="BorderThickness" Value="0"/>
-                                <Setter Property="Template">
-                                    <Setter.Value>
-                                        <ControlTemplate TargetType="ListBoxItem">
-                                            <Border x:Name="IedCard" Background="{StaticResource IedCardSurface}"
-                                                    BorderBrush="{StaticResource BorderSubtle}" BorderThickness="1"
-                                                    CornerRadius="14" Padding="10">
-                                                <ContentPresenter/>
-                                            </Border>
-                                            <ControlTemplate.Triggers>
-                                                <Trigger Property="IsMouseOver" Value="True">
-                                                    <Setter TargetName="IedCard" Property="Background" Value="{StaticResource IedCardHover}"/>
-                                                    <Setter TargetName="IedCard" Property="BorderBrush" Value="#8EAFE3"/>
-                                                </Trigger>
-                                                <Trigger Property="IsSelected" Value="True">
-                                                    <Setter TargetName="IedCard" Property="Background" Value="{StaticResource IedCardSelected}"/>
-                                                    <Setter TargetName="IedCard" Property="BorderBrush" Value="#4F86E5"/>
-                                                </Trigger>
-                                            </ControlTemplate.Triggers>
-                                        </ControlTemplate>
-                                    </Setter.Value>
-                                </Setter>
+                                <Setter Property="Padding" Value="0"/><Setter Property="Margin" Value="0,0,0,8"/><Setter Property="HorizontalContentAlignment" Value="Stretch"/><Setter Property="Background" Value="Transparent"/><Setter Property="BorderThickness" Value="0"/><Setter Property="FocusVisualStyle" Value="{x:Null}"/>
+                                <Setter Property="Template"><Setter.Value><ControlTemplate TargetType="ListBoxItem"><Border x:Name="IedCard" Background="#FAFCFF" BorderBrush="#D8E1EE" BorderThickness="1" CornerRadius="15" Padding="10"><ContentPresenter/></Border><ControlTemplate.Triggers><Trigger Property="IsMouseOver" Value="True"><Setter TargetName="IedCard" Property="Background" Value="#F5F8FD"/><Setter TargetName="IedCard" Property="BorderBrush" Value="#AFC4E6"/></Trigger><Trigger Property="IsSelected" Value="True"><Setter TargetName="IedCard" Property="Background" Value="#EDF4FF"/><Setter TargetName="IedCard" Property="BorderBrush" Value="#6F9FF1"/></Trigger></ControlTemplate.Triggers></ControlTemplate></Setter.Value></Setter>
                             </Style>
                         </ListBox.ItemContainerStyle>
                         <ListBox.ItemTemplate>
                             <DataTemplate>
-                                <Grid>
-                                    <Grid.RowDefinitions>
-                                        <RowDefinition Height="Auto"/>
-                                        <RowDefinition Height="Auto"/>
-                                        <RowDefinition Height="Auto"/>
-                                        <RowDefinition Height="Auto"/>
-                                    </Grid.RowDefinitions>
-                                    <TextBlock Text="{Binding IedName}" FontSize="13" FontWeight="SemiBold" Foreground="{StaticResource Ink}"/>
-                                    <TextBlock Grid.Row="1" Text="{Binding IpAddress}" Style="{StaticResource Caption}" Margin="0,2,0,0"/>
-                                    <TextBlock Grid.Row="2" Text="{Binding IedRole}" Style="{StaticResource Caption}" TextTrimming="CharacterEllipsis"/>
-                                    <TextBlock Grid.Row="3" Margin="0,6,0,0" FontSize="11.3" Foreground="{StaticResource Muted}">
-                                        <Run Text="{Binding BoundCount, Mode=OneWay}"/><Run Text=" bound · "/>
-                                        <Run Text="{Binding PassedCount, Mode=OneWay}"/><Run Text=" passed · "/>
-                                        <Run Text="{Binding PendingCount, Mode=OneWay}"/><Run Text=" pending"/>
-                                    </TextBlock>
+                                <Grid MinHeight="66">
+                                    <Grid.ColumnDefinitions><ColumnDefinition Width="58"/><ColumnDefinition Width="*"/></Grid.ColumnDefinitions>
+                                    <Grid Width="52" Height="52" VerticalAlignment="Center">
+                                        <Viewbox Width="40" Height="40" HorizontalAlignment="Center" VerticalAlignment="Center">
+                                            <Path x:Name="RelayIcon" Data="M 2 0 L 2 20 L 18 20 L 18 0 L 2 0 z M 3 1 L 17 1 L 17 19 L 3 19 L 3 1 z M 5 3 L 5 7 L 15 7 L 15 3 L 5 3 z M 6 4 L 14 4 L 14 6 L 6 6 L 6 4 z M 5 10 L 5 11 L 7 11 L 7 10 L 5 10 z M 9 10 L 9 11 L 11 11 L 11 10 L 9 10 z M 13 10 L 13 11 L 15 11 L 15 10 L 13 10 z M 5 13 L 5 14 L 7 14 L 7 13 L 5 13 z M 9 13 L 9 14 L 11 14 L 11 13 L 9 13 z M 13 13 L 13 14 L 15 14 L 15 13 L 13 13 z M 5 16 L 5 17 L 7 17 L 7 16 L 5 16 z M 9 16 L 9 17 L 11 17 L 11 16 L 9 16 z M 13 16 L 13 17 L 15 17 L 15 16 L 13 16 z" Fill="#D94B55" Stretch="Uniform"/>
+                                        </Viewbox>
+                                        <Grid x:Name="CardSpinner" Width="27" Height="27" Visibility="Collapsed" HorizontalAlignment="Right" VerticalAlignment="Bottom" RenderTransformOrigin="0.5,0.5">
+                                            <Grid.RenderTransform><RotateTransform x:Name="CardSpinnerRotate"/></Grid.RenderTransform>
+                                            <Canvas Width="24" Height="24">
+                                                <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.6" StrokeStartLineCap="Round" StrokeEndLineCap="Round"/>
+                                                <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.6" Opacity="0.78"><Path.RenderTransform><RotateTransform Angle="90" CenterX="12" CenterY="12"/></Path.RenderTransform></Path>
+                                                <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.6" Opacity="0.50"><Path.RenderTransform><RotateTransform Angle="180" CenterX="12" CenterY="12"/></Path.RenderTransform></Path>
+                                                <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.6" Opacity="0.25"><Path.RenderTransform><RotateTransform Angle="270" CenterX="12" CenterY="12"/></Path.RenderTransform></Path>
+                                            </Canvas>
+                                            <Grid.Triggers><EventTrigger RoutedEvent="FrameworkElement.Loaded"><BeginStoryboard><Storyboard RepeatBehavior="Forever"><DoubleAnimation Storyboard.TargetName="CardSpinnerRotate" Storyboard.TargetProperty="Angle" From="0" To="360" Duration="0:0:0.8"/></Storyboard></BeginStoryboard></EventTrigger></Grid.Triggers>
+                                        </Grid>
+                                    </Grid>
+                                    <Grid Grid.Column="1" Margin="3,0,0,0">
+                                        <Grid.RowDefinitions><RowDefinition Height="Auto"/><RowDefinition Height="Auto"/><RowDefinition Height="Auto"/></Grid.RowDefinitions>
+                                        <Grid><Grid.ColumnDefinitions><ColumnDefinition Width="*"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions><TextBlock Text="{Binding IedName}" FontSize="12.8" FontWeight="SemiBold" Foreground="{StaticResource Ink}" TextTrimming="CharacterEllipsis"/><Border x:Name="StateBadge" Grid.Column="1" Background="#FFF1F2" BorderBrush="#F0B7BC" BorderThickness="1" CornerRadius="9" Padding="6,2"><TextBlock x:Name="StateText" Text="{Binding CardStateText}" FontSize="8.5" FontWeight="Bold" Foreground="#C53A45"/></Border></Grid>
+                                        <TextBlock Grid.Row="1" Text="{Binding IpAddress}" Style="{StaticResource Caption}" Margin="0,3,0,0"/>
+                                        <TextBlock Grid.Row="2" Margin="0,7,0,0" FontSize="10.5" Foreground="{StaticResource Muted}"><Run Text="{Binding BoundCount, Mode=OneWay}"/><Run Text=" live  ·  "/><Run Text="{Binding PassedCount, Mode=OneWay}"/><Run Text=" pass  ·  "/><Run Text="{Binding PendingCount, Mode=OneWay}"/><Run Text=" pending"/></TextBlock>
+                                    </Grid>
                                 </Grid>
+                                <DataTemplate.Triggers>
+                                    <DataTrigger Binding="{Binding IsLiveConnected}" Value="True"><Setter TargetName="RelayIcon" Property="Fill" Value="#D49A26"/><Setter TargetName="StateBadge" Property="Background" Value="#FFF8E8"/><Setter TargetName="StateBadge" Property="BorderBrush" Value="#E9C46A"/><Setter TargetName="StateText" Property="Foreground" Value="#A56D00"/></DataTrigger>
+                                    <DataTrigger Binding="{Binding IsLiveMonitoring}" Value="True"><Setter TargetName="RelayIcon" Property="Fill" Value="#18A66A"/><Setter TargetName="StateBadge" Property="Background" Value="#EAF8F1"/><Setter TargetName="StateBadge" Property="BorderBrush" Value="#8FD1B1"/><Setter TargetName="StateText" Property="Foreground" Value="#16845A"/></DataTrigger>
+                                    <DataTrigger Binding="{Binding IsPreparing}" Value="True"><Setter TargetName="RelayIcon" Property="Fill" Value="#4F7FEA"/><Setter TargetName="CardSpinner" Property="Visibility" Value="Visible"/><Setter TargetName="StateBadge" Property="Background" Value="#EDF3FF"/><Setter TargetName="StateBadge" Property="BorderBrush" Value="#9CB8F5"/><Setter TargetName="StateText" Property="Foreground" Value="#315DBF"/></DataTrigger>
+                                </DataTemplate.Triggers>
                             </DataTemplate>
                         </ListBox.ItemTemplate>
                     </ListBox>
                 </DockPanel>
             </Border>
 
-            <Border Grid.Column="2" Style="{StaticResource Card}" Padding="10">
+            <Border Grid.Column="2" Style="{StaticResource Card}" Padding="12">
                 <Grid>
-                    <Grid.RowDefinitions>
-                        <RowDefinition Height="Auto"/>
-                        <RowDefinition Height="8"/>
-                        <RowDefinition Height="*"/>
-                    </Grid.RowDefinitions>
+                    <Grid.RowDefinitions><RowDefinition Height="Auto"/><RowDefinition Height="Auto"/><RowDefinition Height="12"/><RowDefinition Height="*"/></Grid.RowDefinitions>
                     <Grid>
-                        <Grid.ColumnDefinitions>
-                            <ColumnDefinition Width="*"/>
-                            <ColumnDefinition Width="Auto"/>
-                        </Grid.ColumnDefinitions>
-                        <StackPanel>
-                            <TextBlock Text="{Binding SelectedIed.IedName}" Style="{StaticResource SectionTitle}"/>
-                            <TextBlock Text="{Binding SelectedIedSummary}" Style="{StaticResource Caption}" Margin="0,2,0,0"/>
-                            <TextBlock Text="{Binding Session.ActiveIedText}" Style="{StaticResource Caption}" Margin="0,4,0,0"/>
-                            <TextBlock Text="{Binding PreparationStatusText}" Style="{StaticResource Caption}"
-                                       Foreground="{StaticResource Accent}" Margin="0,3,0,0" TextWrapping="Wrap"/>
-                        </StackPanel>
+                        <Grid.ColumnDefinitions><ColumnDefinition Width="*"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions>
+                        <StackPanel VerticalAlignment="Center"><TextBlock Text="{Binding SelectedIed.IedName}" FontSize="17" FontWeight="SemiBold" Foreground="{StaticResource Ink}"/><TextBlock Text="{Binding SelectedIedSummary}" Style="{StaticResource Caption}" Margin="0,4,0,0"/></StackPanel>
                         <StackPanel Grid.Column="1" Orientation="Horizontal" VerticalAlignment="Center">
-                            <Border Background="{StaticResource SoftBlue}" CornerRadius="13" Padding="11,6" Margin="0,0,8,0">
-                                <TextBlock Text="{Binding Session.StateText}" Style="{StaticResource MicroLabel}" Foreground="{StaticResource Accent}"/>
-                            </Border>
-                            <Button Content="{Binding StartWorkflowText}" Style="{StaticResource PrimaryButton}" Padding="12,7"
-                                    IsEnabled="{Binding CanStartWorkflow}" Click="StartSession_Click" Margin="0,0,6,0"/>
-                            <Button Content="Pause" Style="{StaticResource SoftButton}" Padding="11,7"
-                                    IsEnabled="{Binding Session.CanPause}" Click="PauseSession_Click" Margin="0,0,6,0"/>
-                            <Button Content="Resume" Style="{StaticResource SoftButton}" Padding="11,7"
-                                    IsEnabled="{Binding Session.CanResume}" Click="ResumeSession_Click" Margin="0,0,6,0"/>
-                            <Button Content="Stop" Style="{StaticResource SoftButton}" Padding="11,7"
-                                    IsEnabled="{Binding Session.CanStop}" Click="StopSession_Click"/>
+                            <Border Background="#EEF3FC" CornerRadius="13" Padding="10,6" Margin="0,0,8,0"><TextBlock Text="{Binding Session.StateText}" Style="{StaticResource MicroLabel}" Foreground="{StaticResource Accent}"/></Border>
+                            <Button Content="{Binding StartWorkflowText}" Style="{StaticResource PrimaryButton}" Padding="13,8" IsEnabled="{Binding CanStartWorkflow}" Click="StartSession_Click" Margin="0,0,6,0"/>
+                            <Button Content="Pause" Style="{StaticResource SoftButton}" Padding="11,8" IsEnabled="{Binding Session.CanPause}" Click="PauseSession_Click" Margin="0,0,6,0"/>
+                            <Button Content="Resume" Style="{StaticResource SoftButton}" Padding="11,8" IsEnabled="{Binding Session.CanResume}" Click="ResumeSession_Click" Margin="0,0,6,0"/>
+                            <Button Content="Stop" Style="{StaticResource SoftButton}" Padding="11,8" IsEnabled="{Binding Session.CanStop}" Click="StopSession_Click"/>
                         </StackPanel>
                     </Grid>
-
-                    <DataGrid Grid.Row="2" ItemsSource="{Binding SelectedIed.TestPoints}"
-                              AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False"
-                              IsReadOnly="False"
-                              HeadersVisibility="Column" GridLinesVisibility="Horizontal"
-                              BorderThickness="0" Background="Transparent" RowBackground="White"
-                              AlternatingRowBackground="#F8FAFD" HorizontalGridLinesBrush="{StaticResource BorderSubtle}"
-                              SelectionMode="Single" SelectionUnit="FullRow">
+                    <Border Grid.Row="1" Visibility="{Binding PreparationVisibility}" Background="#F3F7FF" BorderBrush="#B9CCF4" BorderThickness="1" CornerRadius="13" Padding="12,9" Margin="0,11,0,0">
+                        <Grid>
+                            <Grid.ColumnDefinitions><ColumnDefinition Width="34"/><ColumnDefinition Width="*"/></Grid.ColumnDefinitions>
+                            <Grid Width="25" Height="25" RenderTransformOrigin="0.5,0.5" VerticalAlignment="Center">
+                                <Grid.RenderTransform><RotateTransform x:Name="HeaderSpinnerRotate"/></Grid.RenderTransform>
+                                <Canvas Width="24" Height="24">
+                                    <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.7" StrokeStartLineCap="Round" StrokeEndLineCap="Round"/>
+                                    <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.7" Opacity="0.75"><Path.RenderTransform><RotateTransform Angle="90" CenterX="12" CenterY="12"/></Path.RenderTransform></Path>
+                                    <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.7" Opacity="0.46"><Path.RenderTransform><RotateTransform Angle="180" CenterX="12" CenterY="12"/></Path.RenderTransform></Path>
+                                    <Path Data="M12,1.5 L12,5" Stroke="#4F7FEA" StrokeThickness="2.7" Opacity="0.22"><Path.RenderTransform><RotateTransform Angle="270" CenterX="12" CenterY="12"/></Path.RenderTransform></Path>
+                                </Canvas>
+                                <Grid.Triggers><EventTrigger RoutedEvent="FrameworkElement.Loaded"><BeginStoryboard><Storyboard RepeatBehavior="Forever"><DoubleAnimation Storyboard.TargetName="HeaderSpinnerRotate" Storyboard.TargetProperty="Angle" From="0" To="360" Duration="0:0:0.8"/></Storyboard></BeginStoryboard></EventTrigger></Grid.Triggers>
+                            </Grid>
+                            <StackPanel Grid.Column="1" VerticalAlignment="Center"><TextBlock Text="{Binding PreparationIedText}" FontSize="11.8" FontWeight="SemiBold" Foreground="{StaticResource Ink}"/><TextBlock Text="{Binding PreparationStatusText}" FontSize="10.8" Foreground="#526783" Margin="0,2,0,0" TextTrimming="CharacterEllipsis"/></StackPanel>
+                        </Grid>
+                    </Border>
+                    <DataGrid Grid.Row="3" ItemsSource="{Binding SelectedIed.TestPoints}" AutoGenerateColumns="False" CanUserAddRows="False" CanUserDeleteRows="False" IsReadOnly="False" HeadersVisibility="Column" GridLinesVisibility="None" BorderThickness="1" BorderBrush="#E1E7F0" Background="White" RowBackground="White" AlternatingRowBackground="White" HorizontalGridLinesBrush="#E8EDF5" SelectionMode="Single" SelectionUnit="FullRow" RowHeaderWidth="0" EnableRowVirtualization="True" EnableColumnVirtualization="True">
                         <DataGrid.Columns>
-                            <DataGridTemplateColumn Header="Test" Width="52">
-                                <DataGridTemplateColumn.CellTemplate>
-                                    <DataTemplate>
-                                        <CheckBox IsChecked="{Binding TestEnabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
-                                                  IsEnabled="{Binding DataContext.CanEditPlan, RelativeSource={RelativeSource AncestorType=DataGrid}}"
-                                                  HorizontalAlignment="Center" VerticalAlignment="Center"/>
-                                    </DataTemplate>
-                                </DataGridTemplateColumn.CellTemplate>
-                            </DataGridTemplateColumn>
-                            <DataGridTextColumn Header="Signal name" Binding="{Binding SignalName}" IsReadOnly="True" Width="2.1*"/>
-                            <DataGridTextColumn Header="IEC reference" Binding="{Binding ObjectReference}" IsReadOnly="True" Width="2.4*"/>
-                            <DataGridTextColumn Header="Live binding" Binding="{Binding LiveBindingText}" IsReadOnly="True" Width="112"/>
-                            <DataGridTextColumn Header="Current" Binding="{Binding Runtime.CurrentValue}" IsReadOnly="True" Width="100"/>
-                            <DataGridTextColumn Header="Quality" Binding="{Binding Runtime.CurrentQuality}" IsReadOnly="True" Width="96"/>
-                            <DataGridTextColumn Header="Source" Binding="{Binding Runtime.CurrentSource}" IsReadOnly="True" Width="104"/>
-                            <DataGridTextColumn Header="ON evidence" Binding="{Binding Runtime.OnEvidence.CapturedAt, StringFormat={}{0:yyyy-MM-dd HH:mm:ss.fff}}" IsReadOnly="True" Width="178"/>
-                            <DataGridTextColumn Header="OFF evidence" Binding="{Binding Runtime.OffEvidence.CapturedAt, StringFormat={}{0:yyyy-MM-dd HH:mm:ss.fff}}" IsReadOnly="True" Width="178"/>
-                            <DataGridTextColumn Header="Result" Binding="{Binding Runtime.State}" IsReadOnly="True" Width="100"/>
+                            <DataGridTemplateColumn Header="TEST" Width="52"><DataGridTemplateColumn.CellTemplate><DataTemplate><CheckBox IsChecked="{Binding TestEnabled, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" IsEnabled="{Binding DataContext.CanEditPlan, RelativeSource={RelativeSource AncestorType=DataGrid}}" HorizontalAlignment="Center" VerticalAlignment="Center"/></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="SIGNAL" Width="2.0*" MinWidth="205"><DataGridTemplateColumn.CellTemplate><DataTemplate><TextBlock Text="{Binding SignalName}" Style="{StaticResource FatGridText}" FontWeight="SemiBold" ToolTip="{Binding SignalName}"/></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="IEC REFERENCE" Width="2.35*" MinWidth="260"><DataGridTemplateColumn.CellTemplate><DataTemplate><TextBlock Text="{Binding ObjectReference}" Style="{StaticResource FatGridText}" FontFamily="Cascadia Mono, Consolas" FontSize="11.2" Foreground="#52627A" ToolTip="{Binding ObjectReference}"/></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="LIVE" Width="82"><DataGridTemplateColumn.CellTemplate><DataTemplate><Border Background="#F2F5FA" CornerRadius="9" Padding="7,3" HorizontalAlignment="Left" ToolTip="{Binding LiveBindingReason}"><TextBlock Text="{Binding LiveBindingText}" FontSize="10.3" FontWeight="SemiBold" Foreground="#5C6C82"/></Border></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="VALUE" Width="88"><DataGridTemplateColumn.CellTemplate><DataTemplate><TextBlock Text="{Binding Runtime.CurrentValue}" Style="{StaticResource FatGridText}" FontWeight="SemiBold"/></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="QUALITY" Width="92"><DataGridTemplateColumn.CellTemplate><DataTemplate><TextBlock Text="{Binding Runtime.CurrentQuality}" Style="{StaticResource FatGridText}" FontSize="11.2" ToolTip="{Binding Runtime.CurrentQuality}"/></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="ACQUISITION" Width="135"><DataGridTemplateColumn.CellTemplate><DataTemplate><Border Background="#F1F5FB" CornerRadius="9" Padding="7,3" HorizontalAlignment="Left" ToolTip="{Binding Runtime.CurrentSource}"><TextBlock Text="{Binding Runtime.CurrentSource}" FontSize="10.4" FontWeight="SemiBold" Foreground="#405B7D" TextTrimming="CharacterEllipsis" MaxWidth="120"/></Border></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="ON · RELAY TIME" Width="164"><DataGridTemplateColumn.CellTemplate><DataTemplate><TextBlock Text="{Binding Runtime.OnRelayTimestampText}" Style="{StaticResource FatGridText}" FontFamily="Cascadia Mono, Consolas" FontSize="10.8" ToolTip="{Binding Runtime.OnEvidenceToolTip}"/></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="OFF · RELAY TIME" Width="164"><DataGridTemplateColumn.CellTemplate><DataTemplate><TextBlock Text="{Binding Runtime.OffRelayTimestampText}" Style="{StaticResource FatGridText}" FontFamily="Cascadia Mono, Consolas" FontSize="10.8" ToolTip="{Binding Runtime.OffEvidenceToolTip}"/></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
+                            <DataGridTemplateColumn Header="RESULT" Width="112"><DataGridTemplateColumn.CellTemplate><DataTemplate><Border x:Name="ResultBadge" Background="#F1F4F8" BorderBrush="#D6DEE9" BorderThickness="1" CornerRadius="10" Padding="8,4" HorizontalAlignment="Left" ToolTip="{Binding Runtime.StatusReason}"><TextBlock x:Name="ResultText" Text="{Binding Runtime.StateText}" FontSize="10.4" FontWeight="Bold" Foreground="#607089"/></Border><DataTemplate.Triggers><DataTrigger Binding="{Binding Runtime.State}" Value="{x:Static io:IoTestPointState.Passed}"><Setter TargetName="ResultBadge" Property="Background" Value="#EAF8F1"/><Setter TargetName="ResultBadge" Property="BorderBrush" Value="#94D4B5"/><Setter TargetName="ResultText" Property="Foreground" Value="#16845A"/></DataTrigger><DataTrigger Binding="{Binding Runtime.State}" Value="{x:Static io:IoTestPointState.Review}"><Setter TargetName="ResultBadge" Property="Background" Value="#FFF8E8"/><Setter TargetName="ResultBadge" Property="BorderBrush" Value="#E8C670"/><Setter TargetName="ResultText" Property="Foreground" Value="#9A6500"/></DataTrigger><DataTrigger Binding="{Binding Runtime.State}" Value="{x:Static io:IoTestPointState.Failed}"><Setter TargetName="ResultBadge" Property="Background" Value="#FFF0F1"/><Setter TargetName="ResultBadge" Property="BorderBrush" Value="#EEAAB0"/><Setter TargetName="ResultText" Property="Foreground" Value="#C53A45"/></DataTrigger><DataTrigger Binding="{Binding Runtime.State}" Value="{x:Static io:IoTestPointState.ArmedForOn}"><Setter TargetName="ResultBadge" Property="Background" Value="#EDF3FF"/><Setter TargetName="ResultBadge" Property="BorderBrush" Value="#A9C0F2"/><Setter TargetName="ResultText" Property="Foreground" Value="#315DBF"/></DataTrigger></DataTemplate.Triggers></DataTemplate></DataGridTemplateColumn.CellTemplate></DataGridTemplateColumn>
                         </DataGrid.Columns>
                     </DataGrid>
                 </Grid>
             </Border>
         </Grid>
 
-        <Border Grid.Row="4" Background="#F7FAFF" BorderBrush="{StaticResource BorderSubtle}"
-                BorderThickness="1" CornerRadius="14" Padding="12,8">
+        <Border Grid.Row="4" Background="#F8FAFD" BorderBrush="#DEE6F0" BorderThickness="1" CornerRadius="13" Padding="12,8">
             <Grid>
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="1.35*"/>
-                    <ColumnDefinition Width="14"/>
-                    <ColumnDefinition Width="1.1*"/>
-                    <ColumnDefinition Width="14"/>
-                    <ColumnDefinition Width="Auto"/>
-                </Grid.ColumnDefinitions>
-                <StackPanel Grid.Column="0">
-                    <TextBlock Text="{Binding Session.StatusText}" Style="{StaticResource Caption}"/>
-                    <TextBlock Text="{Binding Session.JournalIntegrityText}" Style="{StaticResource MicroLabel}" Margin="0,3,0,0"/>
-                    <TextBlock Text="{Binding Session.JournalPath}" Style="{StaticResource Caption}" Margin="0,2,0,0"
-                               TextTrimming="CharacterEllipsis" ToolTip="{Binding Session.JournalPath}"/>
-                </StackPanel>
-                <StackPanel Grid.Column="2">
-                    <TextBlock Text="{Binding Storage.StatusText}" Style="{StaticResource Caption}"/>
-                    <TextBlock Text="{Binding Storage.LastSavedText}" Style="{StaticResource MicroLabel}" Margin="0,3,0,0"/>
-                    <TextBlock Text="{Binding Storage.SnapshotPath}" Style="{StaticResource Caption}" Margin="0,2,0,0"
-                               TextTrimming="CharacterEllipsis" ToolTip="{Binding Storage.SnapshotPath}"/>
-                </StackPanel>
-                <StackPanel Grid.Column="4" HorizontalAlignment="Right">
-                    <TextBlock Text="{Binding Session.ProgressText}" Style="{StaticResource MicroLabel}" Foreground="{StaticResource Ink}" HorizontalAlignment="Right"/>
-                    <TextBlock Style="{StaticResource Caption}" HorizontalAlignment="Right" Margin="0,3,0,0">
-                        <Run Text="Evidence records "/><Run Text="{Binding Session.EvidenceRecordCount, Mode=OneWay}"/>
-                    </TextBlock>
-                    <TextBlock Text="Autosave enabled" Style="{StaticResource Caption}" HorizontalAlignment="Right" Margin="0,2,0,0"/>
-                </StackPanel>
+                <Grid.ColumnDefinitions><ColumnDefinition Width="1.4*"/><ColumnDefinition Width="1.0*"/><ColumnDefinition Width="Auto"/></Grid.ColumnDefinitions>
+                <TextBlock Text="{Binding FooterStatusText}" Style="{StaticResource Caption}" VerticalAlignment="Center" ToolTip="{Binding Session.JournalPath}" TextTrimming="CharacterEllipsis"/>
+                <TextBlock Grid.Column="1" Text="{Binding Storage.LastSavedText}" Style="{StaticResource Caption}" VerticalAlignment="Center" HorizontalAlignment="Center" ToolTip="{Binding Storage.SnapshotPath}"/>
+                <StackPanel Grid.Column="2" Orientation="Horizontal" VerticalAlignment="Center"><TextBlock Text="{Binding Session.ProgressText}" Style="{StaticResource MicroLabel}" Foreground="{StaticResource Ink}"/><TextBlock Text="  ·  " Style="{StaticResource Caption}"/><TextBlock Style="{StaticResource Caption}"><Run Text="Evidence "/><Run Text="{Binding Session.EvidenceRecordCount, Mode=OneWay}"/></TextBlock></StackPanel>
             </Grid>
         </Border>
     </Grid>
diff --git a/IoListTestingWindow.xaml.cs b/IoListTestingWindow.xaml.cs
index bdc3f2ce..4861de0a 100644
--- a/IoListTestingWindow.xaml.cs
+++ b/IoListTestingWindow.xaml.cs
@@ -10,8 +10,8 @@ namespace ArIED61850Tester;
 public partial class IoListTestingWindow : Window, INotifyPropertyChanged
 {
     private IoTestIedPlan? _selectedIed;
-    private bool _isPreparingIed;
-    private string _preparationStatusText = "Workbook-driven connection is ready.";
+    private IoTestIedPlan? _preparingIed;
+    private string _preparationStatusText = string.Empty;
 
     public IoListTestingWindow()
         : this(CreateEmptyProject(), CreateEmptyController(), null)
@@ -51,55 +51,49 @@ public IoTestIedPlan? SelectedIed
         }
     }
 
-    public bool IsPreparingIed
-    {
-        get => _isPreparingIed;
-        private set
-        {
-            if (_isPreparingIed == value)
-                return;
-            _isPreparingIed = value;
-            Raise();
-            Raise(nameof(CanStartWorkflow));
-            Raise(nameof(CanSelectIed));
-            Raise(nameof(CanEditPlan));
-            Raise(nameof(StartWorkflowText));
-        }
-    }
+    public bool IsPreparingIed => _preparingIed != null;
 
     public string PreparationStatusText
     {
         get => _preparationStatusText;
         private set
         {
-            var normalized = string.IsNullOrWhiteSpace(value)
-                ? "Workbook-driven connection is ready."
-                : value.Trim();
+            var normalized = value?.Trim() ?? string.Empty;
             if (_preparationStatusText == normalized)
                 return;
             _preparationStatusText = normalized;
             Raise();
+            Raise(nameof(FooterStatusText));
         }
     }
 
+    public Visibility PreparationVisibility => IsPreparingIed ? Visibility.Visible : Visibility.Collapsed;
+    public string PreparationIedText => _preparingIed == null ? string.Empty : $"Preparing {_preparingIed.IedName}";
+
     public bool CanStartWorkflow =>
         SelectedIed != null && !IsPreparingIed && Session.CanStart;
 
-    public bool CanSelectIed =>
-        !IsPreparingIed && Session.CanSelectIed;
+    // Explorer navigation stays available while one IED is connecting or another FAT
+    // session is running. This is inspection-only; the active evidence scope remains
+    // pinned to Session.ActiveIed.
+    public bool CanSelectIed => true;
 
     public bool CanEditPlan =>
         !IsPreparingIed && Session.CanEditPlan;
 
     public string StartWorkflowText =>
-        IsPreparingIed ? "Connecting IED…" : "Connect & Start IED";
+        IsPreparingIed ? $"Connecting {_preparingIed!.IedName}…" : "Connect & Start IED";
 
     public string ProjectSummary =>
-        $"{Project.Ieds.Count} IED · {Project.SignalCount} SDI · {Project.ReadySignalCount} ready · {Project.LiveBoundSignalCount} live-bound";
+        $"{Project.Ieds.Count} IED · {Project.SignalCount} points · {Project.LiveBoundSignalCount} live";
 
     public string SelectedIedSummary => SelectedIed == null
         ? "Select an imported IED"
-        : $"{SelectedIed.IpAddress} · {SelectedIed.BoundCount}/{SelectedIed.TestPoints.Count} bound · {SelectedIed.LiveStatusText}";
+        : $"{SelectedIed.IpAddress} · {SelectedIed.EnabledCount} test points · {SelectedIed.LiveStatusText}";
+
+    public string FooterStatusText => IsPreparingIed
+        ? PreparationStatusText
+        : Session.StatusText;
 
     public event PropertyChangedEventHandler? PropertyChanged;
 
@@ -116,40 +110,36 @@ private async void StartSession_Click(object sender, RoutedEventArgs e)
             return;
         }
 
-        IsPreparingIed = true;
-        PreparationStatusText = $"Preparing {selectedIed!.IedName} from workbook endpoint {selectedIed.IpAddress}:102…";
+        SetPreparingIed(selectedIed!, $"Connecting {selectedIed!.IedName} · {selectedIed.IpAddress}:102");
         try
         {
             if (Owner is MainWindow engineeringWindow)
             {
                 var progress = new Progress<string>(message =>
                 {
+                    selectedIed.SetPreparationState(true, message);
                     PreparationStatusText = message;
-                    Raise(nameof(ProjectSummary));
-                    Raise(nameof(SelectedIedSummary));
+                    RaiseStatusProperties();
                 });
                 var preparation = await engineeringWindow.PrepareIoTestIedForFatAsync(
                     Project,
                     selectedIed,
                     progress);
-                Raise(nameof(ProjectSummary));
-                Raise(nameof(SelectedIedSummary));
+                RaiseStatusProperties();
                 if (!preparation.Succeeded)
                 {
                     PreparationStatusText = preparation.Message;
-                    ShowActionResult(preparation, "IED connection and monitoring could not start");
+                    ShowActionResult(preparation, "IED acquisition could not start");
                     return;
                 }
             }
 
             var result = Session.Start(selectedIed);
             ShowActionResult(result, "FAT evidence session could not start");
-            Raise(nameof(ProjectSummary));
-            Raise(nameof(SelectedIedSummary));
+            RaiseStatusProperties();
             if (result.Succeeded)
             {
-                PreparationStatusText =
-                    $"{selectedIed.IedName} is connected and monitoring. Evidence capture is waiting for OFF → ON → OFF.";
+                PreparationStatusText = $"{selectedIed.IedName} live · waiting for OFF → ON → OFF";
                 Storage?.ScheduleSave();
             }
             else
@@ -169,7 +159,8 @@ private async void StartSession_Click(object sender, RoutedEventArgs e)
         }
         finally
         {
-            IsPreparingIed = false;
+            selectedIed.SetPreparationState(false, selectedIed.LiveStatusText);
+            SetPreparingIed(null, string.Empty);
         }
     }
 
@@ -358,7 +349,7 @@ private void Window_Closing(object? sender, CancelEventArgs e)
         {
             MessageBox.Show(
                 this,
-                "ARSAS is still connecting, discovering, or preparing live monitoring for the selected IED. Wait for this operation to finish before returning to Engineering.",
+                $"ARSAS is still preparing {_preparingIed!.IedName}. You can inspect other IEDs while it runs, but wait for acquisition setup to finish before closing this workspace.",
                 "IED preparation in progress",
                 MessageBoxButton.OK,
                 MessageBoxImage.Information);
@@ -409,12 +400,30 @@ protected override void OnClosed(EventArgs e)
     }
 
     private void Session_PropertyChanged(object? sender, PropertyChangedEventArgs e)
+        => RaiseStatusProperties();
+
+    private void SetPreparingIed(IoTestIedPlan? ied, string status)
+    {
+        _preparingIed = ied;
+        PreparationStatusText = status;
+        Raise(nameof(IsPreparingIed));
+        Raise(nameof(PreparationVisibility));
+        Raise(nameof(PreparationIedText));
+        Raise(nameof(CanStartWorkflow));
+        Raise(nameof(CanSelectIed));
+        Raise(nameof(CanEditPlan));
+        Raise(nameof(StartWorkflowText));
+        Raise(nameof(FooterStatusText));
+    }
+
+    private void RaiseStatusProperties()
     {
         Raise(nameof(CanStartWorkflow));
         Raise(nameof(CanSelectIed));
         Raise(nameof(CanEditPlan));
         Raise(nameof(ProjectSummary));
         Raise(nameof(SelectedIedSummary));
+        Raise(nameof(FooterStatusText));
     }
 
     private void ShowActionResult(IoTestSessionActionResult result, string title)
diff --git a/MainWindow.IoTesting.AutoConnect.cs b/MainWindow.IoTesting.AutoConnect.cs
index 234abe1b..81eb271c 100644
--- a/MainWindow.IoTesting.AutoConnect.cs
+++ b/MainWindow.IoTesting.AutoConnect.cs
@@ -9,9 +9,9 @@ public partial class MainWindow
     private readonly IoTestSignalSelectionService _ioTestSignalSelectionService = new();
 
     /// <summary>
-    /// Prepares one imported IO-list IED for a read-only FAT session. The workbook
+    /// Prepares one imported IO-list IED for a monitoring-only FAT session. The workbook
     /// supplies the endpoint and exact signal scope, so the operator does not need to
-    /// duplicate the Add IED and signal-selection workflow in the engineering window.
+    /// duplicate Add IED and signal-selection work in the engineering window.
     /// </summary>
     internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
         IoTestProject project,
@@ -27,6 +27,13 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
         if (requestedPoints.Count == 0)
             return IoTestSessionActionResult.Failure("No import-ready IO-list signal is enabled for this IED.");
 
+        void ReportProgress(string message)
+        {
+            ied.SetPreparationState(true, message);
+            progress?.Report(message);
+        }
+
+        ied.SetPreparationState(true, $"Connecting {ied.IedName} · {ied.IpAddress}:102");
         var device = ResolveIoTestDevice(ied.LiveDeviceId)
                      ?? ResolveIoTestDevice(ied.IpAddress)
                      ?? ResolveIoTestDevice(ied.IedName);
@@ -40,21 +47,25 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
                 IdentitySource = "IO List workbook",
                 IpAddress = ied.IpAddress,
                 Port = 102,
-                AllowDynamicDataSetWrites = false,
+                AllowDynamicDataSetWrites = true,
                 Status = "IO FAT ready to connect",
-                Detail = "Connect & Start will discover the live model and monitor only the imported FAT scope."
+                Detail = "Connect & Start will discover the live model and arm report-first acquisition for the imported FAT scope."
             };
             Devices.Add(device);
             RaiseWorkspaceCounts();
         }
 
         if (device.IsBusy)
+        {
+            ied.SetPreparationState(false, "IED is busy in another connection workflow");
             return IoTestSessionActionResult.Failure($"{ied.IedName} is already busy with another connection or discovery workflow.");
+        }
 
         if (!device.IpAddress.Equals(ied.IpAddress, StringComparison.OrdinalIgnoreCase))
         {
             if (device.IsConnected || device.IsMonitoring)
             {
+                ied.SetPreparationState(false, "Endpoint mismatch");
                 return IoTestSessionActionResult.Failure(
                     $"The loaded {ied.IedName} workspace is connected to {device.IpAddress}, but the IO list requires {ied.IpAddress}. Stop that engineering session or correct the workbook endpoint before FAT.");
             }
@@ -68,14 +79,16 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
         if (string.IsNullOrWhiteSpace(device.SclIedName))
             device.SclIedName = ied.IedName;
 
-        // Dedicated IO FAT remains read-only toward IED configuration. Existing
-        // configured reports are preferred; uncovered points use visible bounded
-        // polling instead of creating a dynamic DataSet or writing an RCB.
-        device.AllowDynamicDataSetWrites = false;
+        // Monitoring-only toward the process: no control commands are executed. Use
+        // configured RCB/DataSet coverage first, then an association-scoped temporary
+        // dynamic DataSet/URCB when exact coverage is missing, with bounded MMS
+        // verification/fallback last. Temporary report resources are released when the
+        // native monitoring session stops.
+        device.AllowDynamicDataSetWrites = true;
 
         try
         {
-            progress?.Report($"Connecting to {ied.IedName} at {ied.IpAddress}:102…");
+            ReportProgress($"Connecting {ied.IedName} · {ied.IpAddress}:102");
             var usedSavedModel = false;
             if (!device.IsConnected)
             {
@@ -88,12 +101,12 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
                 {
                     _ioTestLiveBindingService.Bind(project, Devices);
                     return IoTestSessionActionResult.Failure(
-                        $"ARSAS could not connect to {ied.IedName} at {ied.IpAddress}:102. Open Diagnostics for the exact MMS association or discovery error.");
+                        $"ARSAS could not connect to {ied.IedName} at {ied.IpAddress}:102. Open Diagnostics for the MMS association or discovery error.");
                 }
             }
             else if (device.Signals.Count == 0)
             {
-                progress?.Report($"{ied.IedName} is connected but has no discovered model. Running full live discovery…");
+                ReportProgress($"{ied.IedName} connected · discovering live model");
                 await StopDeviceConnectionAsync(device);
                 if (!await ConnectAndConfigureDeviceAsync(device, openWizard: false, selectDevice: false))
                 {
@@ -102,11 +115,11 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
                 }
             }
 
-            progress?.Report($"Matching {requestedPoints.Count} imported signal(s) to the discovered IED model…");
+            ReportProgress($"Matching {requestedPoints.Count} workbook signal(s)");
             var selection = _ioTestSignalSelectionService.Resolve(ied, device);
             if (!selection.Succeeded && selection.CanRetryWithFreshDiscovery)
             {
-                progress?.Report("The saved/loaded model does not contain every imported signal. Refreshing the live model once…");
+                ReportProgress("Refreshing live model once · saved model missed workbook points");
                 if (device.IsMonitoring)
                     await StopDeviceMonitorAsync(device);
                 if (device.IsConnected)
@@ -147,22 +160,23 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
 
             if (device.IsMonitoring && (selectionChanged || !allRequestedPointsLive))
             {
-                progress?.Report("Refreshing monitoring so every imported signal is included…");
+                ReportProgress("Refreshing acquisition for the workbook scope");
                 await StopDeviceMonitorAsync(device);
             }
 
             if (!device.IsMonitoring)
             {
-                progress?.Report(
-                    "Starting configured-report-first monitoring. Uncovered signals will use visible bounded polling fallback…");
+                ReportProgress("Arming configured RCB · dynamic URCB fallback if coverage is missing");
                 if (!await StartDeviceMonitorAsync(device, navigateToExplorer: false))
                 {
                     _ioTestLiveBindingService.Bind(project, Devices);
                     return IoTestSessionActionResult.Failure(
-                        $"{ied.IedName} connected, but ARSAS could not start live monitoring for the imported FAT scope.");
+                        $"{ied.IedName} connected, but ARSAS could not start live acquisition for the imported FAT scope.");
                 }
             }
 
+            await WaitForIoFatAcquisitionAsync(device, ReportProgress);
+
             var binding = _ioTestLiveBindingService.Bind(project, Devices);
             var liveCount = requestedPoints.Count(point =>
                 point.LiveBindingState == IoTestLiveBindingState.LivePointReady);
@@ -178,14 +192,13 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
 
             SaveSignalSelectionMemory(device);
             var modelText = usedSavedModel ? "saved model" : "live model";
-            var message =
-                $"{ied.IedName} is connected from the {modelText}; {liveCount}/{requestedPoints.Count} imported signal(s) are live. {device.AcquisitionMode}";
+            var message = $"{ied.IedName} · {liveCount}/{requestedPoints.Count} live · {device.AcquisitionMode}";
             SetStatus(message);
             AddLog(
                 "INFO",
                 "IO Testing",
-                $"{message} Dynamic DataSet/RCB writes are disabled for the dedicated FAT workflow. Project live-bound={binding.LivePointCount}.");
-            progress?.Report(message);
+                $"{message}. Acquisition policy: configured RCB → temporary dynamic DataSet/URCB → bounded MMS verification/fallback. No process control commands are enabled. Project live-bound={binding.LivePointCount}; model={modelText}.");
+            ReportProgress(message);
             return IoTestSessionActionResult.Success(message);
         }
         catch (OperationCanceledException)
@@ -203,8 +216,31 @@ internal async Task<IoTestSessionActionResult> PrepareIoTestIedForFatAsync(
         }
         finally
         {
+            ied.SetPreparationState(false, ied.LiveStatusText);
             if (createdFromWorkbook)
                 RaiseWorkspaceCounts();
         }
     }
+
+    private static async Task WaitForIoFatAcquisitionAsync(
+        Iec61850MonitorDevice device,
+        Action<string> reportProgress)
+    {
+        if (!device.IsMonitoring)
+            return;
+
+        for (var attempt = 0; attempt < 35; attempt++)
+        {
+            var mode = device.AcquisitionMode ?? string.Empty;
+            if (!mode.Contains("arming", StringComparison.OrdinalIgnoreCase) &&
+                !mode.Contains("live start", StringComparison.OrdinalIgnoreCase))
+                return;
+
+            if (attempt == 0)
+                reportProgress("Validating RCB/DataSet coverage · MMS remains verification only");
+            await Task.Delay(100);
+        }
+
+        reportProgress($"Acquisition still settling · {device.AcquisitionMode}");
+    }
 }
diff --git a/Models/IoTesting/IoTestModels.cs b/Models/IoTesting/IoTestModels.cs
index 2f6030e2..92afeea3 100644
--- a/Models/IoTesting/IoTestModels.cs
+++ b/Models/IoTesting/IoTestModels.cs
@@ -1,6 +1,8 @@
 using ArIED61850Tester.Models;
 
 using System.ComponentModel;
+using System.Globalization;
+using System.Text.Json.Serialization;
 
 namespace ArIED61850Tester.Models.IoTesting;
 
@@ -78,6 +80,7 @@ public sealed class IoTestPointRuntime : ObservableObject
     private string _currentValue = "-";
     private string _currentQuality = "Unknown";
     private string _currentSource = "Not connected";
+    private string _currentIedTimestamp = "—";
 
     public IoTestPointState State
     {
@@ -85,28 +88,99 @@ public IoTestPointState State
         internal set
         {
             if (Set(ref _state, value))
+            {
                 Raise(nameof(IsComplete));
+                Raise(nameof(StateText));
+            }
         }
     }
 
     public bool? LastObservedState { get => _lastObservedState; internal set => Set(ref _lastObservedState, value); }
     public long LastSequence { get => _lastSequence; internal set => Set(ref _lastSequence, value); }
     public long ConnectionGeneration { get => _connectionGeneration; internal set => Set(ref _connectionGeneration, value); }
-    public IoTestTransitionEvidence? OnEvidence { get => _onEvidence; internal set => Set(ref _onEvidence, value); }
-    public IoTestTransitionEvidence? OffEvidence { get => _offEvidence; internal set => Set(ref _offEvidence, value); }
+    public IoTestTransitionEvidence? OnEvidence
+    {
+        get => _onEvidence;
+        internal set
+        {
+            if (!Set(ref _onEvidence, value))
+                return;
+            Raise(nameof(OnRelayTimestampText));
+            Raise(nameof(OnEvidenceToolTip));
+        }
+    }
+
+    public IoTestTransitionEvidence? OffEvidence
+    {
+        get => _offEvidence;
+        internal set
+        {
+            if (!Set(ref _offEvidence, value))
+                return;
+            Raise(nameof(OffRelayTimestampText));
+            Raise(nameof(OffEvidenceToolTip));
+        }
+    }
     public string StatusReason { get => _statusReason; internal set => Set(ref _statusReason, value ?? string.Empty); }
     public int Attempt { get => _attempt; internal set => Set(ref _attempt, value); }
     public string CurrentValue { get => _currentValue; internal set => Set(ref _currentValue, string.IsNullOrWhiteSpace(value) ? "-" : value); }
     public string CurrentQuality { get => _currentQuality; internal set => Set(ref _currentQuality, string.IsNullOrWhiteSpace(value) ? "Unknown" : value); }
     public string CurrentSource { get => _currentSource; internal set => Set(ref _currentSource, string.IsNullOrWhiteSpace(value) ? "Unknown" : value); }
 
+    [JsonIgnore]
+    public string CurrentIedTimestamp
+    {
+        get => _currentIedTimestamp;
+        internal set => Set(ref _currentIedTimestamp, string.IsNullOrWhiteSpace(value) ? "—" : value);
+    }
+
     public bool IsComplete => State is IoTestPointState.Passed or IoTestPointState.Review or IoTestPointState.Failed;
 
+    [JsonIgnore]
+    public string StateText => State switch
+    {
+        IoTestPointState.NotStarted => "Not started",
+        IoTestPointState.WaitingForBaseline => "Waiting baseline",
+        IoTestPointState.WaitingForOffBaseline => "Waiting OFF",
+        IoTestPointState.ArmedForOn => "Ready for ON",
+        IoTestPointState.OnCaptured => "ON captured",
+        IoTestPointState.Passed => "PASS",
+        IoTestPointState.Review => "REVIEW",
+        IoTestPointState.Failed => "FAIL",
+        _ => State.ToString()
+    };
+
+    [JsonIgnore]
+    public string OnRelayTimestampText => FormatRelayTimestamp(OnEvidence?.IedTimestamp);
+
+    [JsonIgnore]
+    public string OffRelayTimestampText => FormatRelayTimestamp(OffEvidence?.IedTimestamp);
+
+    [JsonIgnore]
+    public string OnEvidenceToolTip => BuildEvidenceToolTip(OnEvidence, "ON");
+
+    [JsonIgnore]
+    public string OffEvidenceToolTip => BuildEvidenceToolTip(OffEvidence, "OFF");
+
     internal void ApplyObservation(IoTestObservation observation)
     {
         CurrentValue = observation.RawValue;
         CurrentQuality = observation.Quality;
         CurrentSource = observation.AcquisitionSource;
+        CurrentIedTimestamp = observation.IedTimestamp?.ToString("yyyy-MM-dd HH:mm:ss.fff zzz", CultureInfo.InvariantCulture) ?? "—";
+    }
+
+    private static string FormatRelayTimestamp(DateTimeOffset? value)
+        => value?.ToString("yyyy-MM-dd HH:mm:ss.fff", CultureInfo.InvariantCulture) ?? "—";
+
+    private static string BuildEvidenceToolTip(IoTestTransitionEvidence? evidence, string label)
+    {
+        if (evidence == null)
+            return $"{label} transition has not been captured.";
+
+        var relay = evidence.IedTimestamp?.ToString("O", CultureInfo.InvariantCulture) ?? "not supplied";
+        var captured = evidence.CapturedAt.ToString("O", CultureInfo.InvariantCulture);
+        return $"Relay timestamp: {relay}\nARSAS capture: {captured}\nQuality: {evidence.Quality}\nSource: {evidence.AcquisitionSource}\n{evidence.Verdict}: {evidence.VerdictReason}";
     }
 
     internal void ResetAttempt()
@@ -199,6 +273,10 @@ public sealed class IoTestIedPlan : ObservableObject
 {
     private string _liveDeviceId = string.Empty;
     private string _liveStatusText = "Not evaluated";
+    private bool _isPreparing;
+    private string _preparationStatusText = string.Empty;
+    private bool _isLiveConnected;
+    private bool _isLiveMonitoring;
     private bool _notificationsInitialized;
 
     public required string IedName { get; init; }
@@ -211,19 +289,82 @@ public sealed class IoTestIedPlan : ObservableObject
 
     public string LiveDeviceId { get => _liveDeviceId; private set => Set(ref _liveDeviceId, value ?? string.Empty); }
     public string LiveStatusText { get => _liveStatusText; private set => Set(ref _liveStatusText, value ?? string.Empty); }
+
+    [JsonIgnore]
+    public bool IsPreparing
+    {
+        get => _isPreparing;
+        private set
+        {
+            if (!Set(ref _isPreparing, value))
+                return;
+            Raise(nameof(CardStateText));
+        }
+    }
+
+    [JsonIgnore]
+    public string PreparationStatusText
+    {
+        get => _preparationStatusText;
+        private set => Set(ref _preparationStatusText, value?.Trim() ?? string.Empty);
+    }
+
+    [JsonIgnore]
+    public bool IsLiveConnected
+    {
+        get => _isLiveConnected;
+        private set
+        {
+            if (!Set(ref _isLiveConnected, value))
+                return;
+            Raise(nameof(CardStateText));
+        }
+    }
+
+    [JsonIgnore]
+    public bool IsLiveMonitoring
+    {
+        get => _isLiveMonitoring;
+        private set
+        {
+            if (!Set(ref _isLiveMonitoring, value))
+                return;
+            Raise(nameof(CardStateText));
+        }
+    }
+
+    [JsonIgnore]
+    public string CardStateText => IsPreparing ? "CONNECTING" : IsLiveMonitoring ? "LIVE" : IsLiveConnected ? "READY" : "OFFLINE";
+
     public int EnabledCount => TestPoints.Count(point => point.TestEnabled);
     public int PassedCount => TestPoints.Count(point => point.Runtime.State == IoTestPointState.Passed);
     public int ReviewCount => TestPoints.Count(point => point.Runtime.State == IoTestPointState.Review);
     public int BoundCount => TestPoints.Count(point => point.IsLiveBound);
     public int PendingCount => Math.Max(0, EnabledCount - PassedCount - ReviewCount);
 
-    public void ApplyLiveDeviceBinding(string? deviceId, string status)
+    public void ApplyLiveDeviceBinding(
+        string? deviceId,
+        string status,
+        bool isConnected = false,
+        bool isMonitoring = false)
     {
         LiveDeviceId = deviceId ?? string.Empty;
         LiveStatusText = status;
+        IsLiveConnected = isConnected;
+        IsLiveMonitoring = isMonitoring;
         RaiseProgressProperties();
     }
 
+    public void SetPreparationState(bool isPreparing, string? status = null)
+    {
+        IsPreparing = isPreparing;
+        if (status != null)
+            PreparationStatusText = status;
+        if (!isPreparing && string.IsNullOrWhiteSpace(status))
+            PreparationStatusText = string.Empty;
+        Raise(nameof(CardStateText));
+    }
+
     public void InitializeRuntimeNotifications()
     {
         if (_notificationsInitialized)
diff --git a/Services/IoTesting/IoTestLiveBindingService.cs b/Services/IoTesting/IoTestLiveBindingService.cs
index c8cf4001..0bd79c05 100644
--- a/Services/IoTesting/IoTestLiveBindingService.cs
+++ b/Services/IoTesting/IoTestLiveBindingService.cs
@@ -31,7 +31,7 @@ public IoTestLiveBindingSummary Bind(
             var device = FindDevice(iedPlan, deviceList);
             if (device == null)
             {
-                iedPlan.ApplyLiveDeviceBinding(null, "IED is present in the IO list but is not loaded in the engineering workspace");
+                iedPlan.ApplyLiveDeviceBinding(null, "Not connected");
                 foreach (var point in iedPlan.TestPoints)
                 {
                     point.ApplyLiveBinding(
@@ -45,10 +45,12 @@ public IoTestLiveBindingSummary Bind(
             iedPlan.ApplyLiveDeviceBinding(
                 device.DeviceId,
                 device.IsMonitoring
-                    ? $"Monitoring · {device.Name} · {device.EndpointText}"
+                    ? $"Monitoring · {device.AcquisitionMode}"
                     : device.IsConnected
-                        ? $"Connected · {device.Name} · {device.EndpointText}"
-                        : $"Loaded · {device.Name} · {device.EndpointText}");
+                        ? "Connected · preparing live acquisition"
+                        : "Workspace model ready",
+                device.IsConnected,
+                device.IsMonitoring);
 
             foreach (var point in iedPlan.TestPoints)
             {
@@ -64,6 +66,9 @@ public IoTestLiveBindingSummary Bind(
                         point.Runtime.CurrentValue = binding.LivePoint.Value;
                         point.Runtime.CurrentQuality = binding.LivePoint.Quality;
                         point.Runtime.CurrentSource = binding.LivePoint.SourceMode;
+                        point.Runtime.CurrentIedTimestamp = string.IsNullOrWhiteSpace(binding.LivePoint.DeviceTimestamp) || binding.LivePoint.DeviceTimestamp == "-"
+                            ? "—"
+                            : binding.LivePoint.DeviceTimestamp;
                     }
                 }
                 else if (binding.State == IoTestLiveBindingState.SignalNotFound)
diff --git a/Services/IoTesting/IoTestTransitionEvaluator.cs b/Services/IoTesting/IoTestTransitionEvaluator.cs
index e1d1d022..0a7ee5bb 100644
--- a/Services/IoTesting/IoTestTransitionEvaluator.cs
+++ b/Services/IoTesting/IoTestTransitionEvaluator.cs
@@ -248,7 +248,7 @@ private static IoTestTransitionEvidence CreateEvidence(
         bool? previous,
         IoTestObservation observation)
     {
-        var (verdict, reason) = EvaluateQuality(observation.Quality);
+        var (verdict, reason) = EvaluateEvidenceObservation(observation);
         return new IoTestTransitionEvidence(
             Guid.NewGuid(),
             transition,
@@ -265,6 +265,17 @@ private static IoTestTransitionEvidence CreateEvidence(
             reason);
     }
 
+    private static (IoEvidenceVerdict Verdict, string Reason) EvaluateEvidenceObservation(IoTestObservation observation)
+    {
+        var (qualityVerdict, qualityReason) = EvaluateQuality(observation.Quality);
+        if (observation.IedTimestamp != null || qualityVerdict == IoEvidenceVerdict.Rejected)
+            return (qualityVerdict, qualityReason);
+
+        return qualityVerdict == IoEvidenceVerdict.Accepted
+            ? (IoEvidenceVerdict.Review, "Relay timestamp was not supplied for this transition")
+            : (IoEvidenceVerdict.Review, $"{qualityReason}; relay timestamp was not supplied");
+    }
+
     internal static (IoEvidenceVerdict Verdict, string Reason) EvaluateQuality(string? quality)
     {
         var normalized = (quality ?? string.Empty).Trim().ToLowerInvariant();
diff --git a/tests/ARSAS.Tests/IoTestTransitionEvaluatorTests.cs b/tests/ARSAS.Tests/IoTestTransitionEvaluatorTests.cs
index e9b5a96b..164e3cb9 100644
--- a/tests/ARSAS.Tests/IoTestTransitionEvaluatorTests.cs
+++ b/tests/ARSAS.Tests/IoTestTransitionEvaluatorTests.cs
@@ -25,6 +25,20 @@ public void OffOnOffSequence_PassesWithOrderedEvidence()
         Assert.True(point.Runtime.OffEvidence!.CapturedAt > point.Runtime.OnEvidence!.CapturedAt);
     }
 
+    [Fact]
+    public void MissingRelayTimestamp_ProducesReviewInsteadOfPass()
+    {
+        var point = CreatePoint();
+        _evaluator.StartAttempt(point, Observation(false, 1));
+
+        var on = _evaluator.Observe(point, ObservationWithoutRelayTimestamp(true, 2));
+        var off = _evaluator.Observe(point, Observation(false, 3));
+
+        Assert.Equal(IoEvidenceVerdict.Review, on.Evidence?.Verdict);
+        Assert.Contains("Relay timestamp", on.Evidence?.VerdictReason, StringComparison.OrdinalIgnoreCase);
+        Assert.Equal(IoTestPointState.Review, off.State);
+    }
+
     [Fact]
     public void InitiallyOn_DoesNotCreateOnEvidenceUntilNewCycle()
     {
@@ -222,4 +236,23 @@ private static IoTestObservation Observation(
             sequence,
             generation);
     }
+
+    private static IoTestObservation ObservationWithoutRelayTimestamp(
+        bool state,
+        long sequence,
+        long generation = 1,
+        string quality = "Good")
+    {
+        var captured = new DateTimeOffset(2026, 7, 28, 8, 0, 0, TimeSpan.Zero)
+            .AddMilliseconds(sequence * 100);
+        return new IoTestObservation(
+            state,
+            state ? "true" : "false",
+            captured,
+            null,
+            quality,
+            "MMS polling",
+            sequence,
+            generation);
+    }
 }
diff --git a/tests/ARSAS.Tests/IoTestingUiContractTests.cs b/tests/ARSAS.Tests/IoTestingUiContractTests.cs
index cfdc8a68..88fe09fc 100644
--- a/tests/ARSAS.Tests/IoTestingUiContractTests.cs
+++ b/tests/ARSAS.Tests/IoTestingUiContractTests.cs
@@ -40,7 +40,7 @@ public void IoTestingLauncher_UsesArsasProjectAndNativePdfWording()
     }
 
     [Fact]
-    public void IoTestingWindow_ExposesAutosaveExcelPdfAndArsasProjectActions()
+    public void IoTestingWindow_ExposesCalmExportActionsWithoutPathNoise()
     {
         var document = XDocument.Load(FindRepoFile("IoListTestingWindow.xaml"));
         XNamespace presentation = "http://schemas.microsoft.com/winfx/2006/xaml/presentation";
@@ -51,17 +51,20 @@ public void IoTestingWindow_ExposesAutosaveExcelPdfAndArsasProjectActions()
             .Cast<string>()
             .ToList();
 
-        Assert.Contains("Save Progress", buttonContents);
-        Assert.Contains("Export Excel", buttonContents);
-        Assert.Contains("Export PDF", buttonContents);
+        Assert.Contains("Save", buttonContents);
+        Assert.Contains("Excel", buttonContents);
+        Assert.Contains("PDF", buttonContents);
         Assert.Contains("Export .arsas", buttonContents);
-        Assert.Contains(
-            document.Descendants(presentation + "TextBlock"),
-            text => ((string?)text.Attribute("Text"))?.Contains("Autosave enabled", StringComparison.Ordinal) == true);
+        Assert.Contains("Engineering", buttonContents);
+        Assert.DoesNotContain("Autosave enabled", document.ToString(), StringComparison.Ordinal);
+        Assert.Equal("{Binding Storage.SnapshotPath}",
+            document.Descendants(presentation + "TextBlock")
+                .Select(text => (string?)text.Attribute("ToolTip"))
+                .First(value => value == "{Binding Storage.SnapshotPath}"));
     }
 
     [Fact]
-    public void IoTestingWindow_ConnectsAndPreparesWorkbookIedBeforeEvidenceStart()
+    public void IoTestingWindow_ConnectsWithoutLockingExplorerNavigation()
     {
         var document = XDocument.Load(FindRepoFile("IoListTestingWindow.xaml"));
         XNamespace presentation = "http://schemas.microsoft.com/winfx/2006/xaml/presentation";
@@ -71,30 +74,55 @@ public void IoTestingWindow_ConnectsAndPreparesWorkbookIedBeforeEvidenceStart()
 
         Assert.Equal("{Binding StartWorkflowText}", (string?)startButton.Attribute("Content"));
         Assert.Equal("{Binding CanStartWorkflow}", (string?)startButton.Attribute("IsEnabled"));
-        Assert.Contains("configured-report-first", document.ToString(), StringComparison.Ordinal);
+        Assert.Contains("report-first acquisition", document.ToString(), StringComparison.Ordinal);
+        Assert.Contains("HeaderSpinnerRotate", document.ToString(), StringComparison.Ordinal);
+        Assert.Contains("CardSpinnerRotate", document.ToString(), StringComparison.Ordinal);
 
         var windowSource = File.ReadAllText(FindRepoFile("IoListTestingWindow.xaml.cs"));
         Assert.Contains("Connect & Start IED", windowSource, StringComparison.Ordinal);
         Assert.Contains("PrepareIoTestIedForFatAsync", windowSource, StringComparison.Ordinal);
-        Assert.Contains("IsPreparingIed", windowSource, StringComparison.Ordinal);
-        Assert.Contains("CanSelectIed", windowSource, StringComparison.Ordinal);
-        Assert.Contains("CanEditPlan", windowSource, StringComparison.Ordinal);
+        Assert.Contains("public bool CanSelectIed => true", windowSource, StringComparison.Ordinal);
+        Assert.Contains("var selectedIed = SelectedIed", windowSource, StringComparison.Ordinal);
+        Assert.Contains("Session.Start(selectedIed)", windowSource, StringComparison.Ordinal);
     }
 
     [Fact]
-    public void IoFatAutomaticPreparation_IsReadOnlyAndUsesReportFirstMonitoring()
+    public void IoFatAutomaticPreparation_UsesSmartReportingWithoutProcessControls()
     {
         var source = File.ReadAllText(FindRepoFile("MainWindow.IoTesting.AutoConnect.cs"));
 
-        Assert.Contains("AllowDynamicDataSetWrites = false", source, StringComparison.Ordinal);
+        Assert.Contains("AllowDynamicDataSetWrites = true", source, StringComparison.Ordinal);
         Assert.Contains("ConnectAndConfigureDeviceAsync", source, StringComparison.Ordinal);
         Assert.Contains("StartDeviceMonitorAsync", source, StringComparison.Ordinal);
-        Assert.Contains("configured-report-first", source, StringComparison.Ordinal);
-        Assert.Contains("polling fallback", source, StringComparison.OrdinalIgnoreCase);
+        Assert.Contains("configured RCB", source, StringComparison.Ordinal);
+        Assert.Contains("dynamic DataSet/URCB", source, StringComparison.Ordinal);
+        Assert.Contains("bounded MMS verification/fallback", source, StringComparison.Ordinal);
+        Assert.Contains("WaitForIoFatAcquisitionAsync", source, StringComparison.Ordinal);
         Assert.DoesNotContain("ExecuteControlAsync", source, StringComparison.Ordinal);
         Assert.DoesNotContain("InspectControlAsync", source, StringComparison.Ordinal);
     }
 
+    [Fact]
+    public void IoTestingWindow_UsesRelayTimestampEvidenceAndPremiumGridDensity()
+    {
+        var document = XDocument.Load(FindRepoFile("IoListTestingWindow.xaml"));
+        XNamespace presentation = "http://schemas.microsoft.com/winfx/2006/xaml/presentation";
+        var text = document.ToString();
+
+        Assert.Contains("Runtime.OnRelayTimestampText", text, StringComparison.Ordinal);
+        Assert.Contains("Runtime.OffRelayTimestampText", text, StringComparison.Ordinal);
+        Assert.Contains("ON · RELAY TIME", text, StringComparison.Ordinal);
+        Assert.Contains("OFF · RELAY TIME", text, StringComparison.Ordinal);
+        Assert.Contains(
+            document.Descendants(presentation + "Setter"),
+            setter => (string?)setter.Attribute("Property") == "MinHeight" &&
+                      (string?)setter.Attribute("Value") == "48");
+        Assert.Contains("RelayIcon", text, StringComparison.Ordinal);
+        Assert.Contains("CardStateText", text, StringComparison.Ordinal);
+        Assert.DoesNotContain("Runtime.OnEvidence.CapturedAt", text, StringComparison.Ordinal);
+        Assert.DoesNotContain("Runtime.OffEvidence.CapturedAt", text, StringComparison.Ordinal);
+    }
+
     [Fact]
     public void IoFatPackageService_UsesShortExtensionAndBundlesNativeReports()
     {