diff --git a/src/FlaUInspect/App.xaml.cs b/src/FlaUInspect/App.xaml.cs
index 84a685b..9a37f47 100644
--- a/src/FlaUInspect/App.xaml.cs
+++ b/src/FlaUInspect/App.xaml.cs
@@ -90,6 +90,7 @@ public static void ApplyAppOption(FlaUiAppSettings settings) {
         });
 
         FlaUiAppOptions.AutoCloseOnProcessExit = settings.AutoCloseOnProcessExit;
+        FlaUiAppOptions.DefaultUiaVersion = settings.DefaultUiaVersion;
 
         ThicknessConverter converter = new ();
         FlaUiAppSettings cloneSetting = settings.Clone() as FlaUiAppSettings;
diff --git a/src/FlaUInspect/Settings/FlaUiAppOptions.cs b/src/FlaUInspect/Settings/FlaUiAppOptions.cs
index 4fd221e..bd6dcc9 100644
--- a/src/FlaUInspect/Settings/FlaUiAppOptions.cs
+++ b/src/FlaUInspect/Settings/FlaUiAppOptions.cs
@@ -6,6 +6,7 @@ namespace FlaUInspect.Settings;
 
 public class FlaUiAppOptions {
     public bool AutoCloseOnProcessExit { get; set; } = true;
+    public string DefaultUiaVersion { get; set; } = "UIA3";
     public Func<ElementOverlay?> HoverOverlay { get; set; } = () => null;
     public Func<ElementOverlay?> SelectionOverlay { get; set; } = () => null;
     public Func<ElementOverlay?> PickOverlay { get; set; } = () => null;
diff --git a/src/FlaUInspect/Settings/FlaUiAppSettings.cs b/src/FlaUInspect/Settings/FlaUiAppSettings.cs
index c2e5410..62bfdbc 100644
--- a/src/FlaUInspect/Settings/FlaUiAppSettings.cs
+++ b/src/FlaUInspect/Settings/FlaUiAppSettings.cs
@@ -8,6 +8,7 @@ public class FlaUiAppSettings : ObservableObject, ICloneable {
     private OverlaySettings? _selectionOverlay = new ();
     private string _theme = "Light";
     private bool _autoCloseOnProcessExit = true;
+    private string _defaultUiaVersion = "UIA3";
 
     public string Theme {
         get => _theme;
@@ -19,6 +20,11 @@ public bool AutoCloseOnProcessExit {
         set => SetProperty(ref _autoCloseOnProcessExit, value);
     }
 
+    public string DefaultUiaVersion {
+        get => _defaultUiaVersion;
+        set => SetProperty(ref _defaultUiaVersion, value);
+    }
+
     public OverlaySettings? HoverOverlay {
         get => _hoverOverlay;
         set => SetProperty(ref _hoverOverlay, value);
@@ -38,6 +44,7 @@ public object Clone() {
         return new FlaUiAppSettings {
             Theme = Theme,
             AutoCloseOnProcessExit = AutoCloseOnProcessExit,
+            DefaultUiaVersion = DefaultUiaVersion,
             HoverOverlay = HoverOverlay?.Clone() as OverlaySettings,
             SelectionOverlay = SelectionOverlay?.Clone() as OverlaySettings,
             PickOverlay = PickOverlay?.Clone() as OverlaySettings
@@ -47,6 +54,7 @@ public object Clone() {
     public void CopyTo(FlaUiAppSettings to) {
         to.Theme = Theme;
         to.AutoCloseOnProcessExit = AutoCloseOnProcessExit;
+        to.DefaultUiaVersion = DefaultUiaVersion;
         to.PickOverlay?.CoppyTo(PickOverlay);
         to.SelectionOverlay?.CoppyTo(SelectionOverlay);
         to.HoverOverlay?.CoppyTo(HoverOverlay);
diff --git a/src/FlaUInspect/ViewModels/SettingsViewModel.cs b/src/FlaUInspect/ViewModels/SettingsViewModel.cs
index 8434095..b7e1cf6 100644
--- a/src/FlaUInspect/ViewModels/SettingsViewModel.cs
+++ b/src/FlaUInspect/ViewModels/SettingsViewModel.cs
@@ -18,6 +18,7 @@ public SettingsViewModel() {
 
     public IEnumerable<string> Themes { get; } = new List<string> { "Light", "Dark" };
     public IEnumerable<string> OverlayModes { get; } = new List<string> { "Fill", "Border" };
+    public IEnumerable<string> UiaVersions { get; } = new List<string> { "UIA2", "UIA3" };
 
     public void Save() {
         _settingsService.Save(Settings.Current);
diff --git a/src/FlaUInspect/ViewModels/StartupViewModel.cs b/src/FlaUInspect/ViewModels/StartupViewModel.cs
index 5a9fbc8..5533a65 100644
--- a/src/FlaUInspect/ViewModels/StartupViewModel.cs
+++ b/src/FlaUInspect/ViewModels/StartupViewModel.cs
@@ -68,9 +68,10 @@ public StartupViewModel() {
                                                       closableViewModel.Save();
                                                       DialogContent = null;
 
-                                                      if (settingsViewModel != null) {
-                                                          App.ApplyAppOption(settingsViewModel.Settings.Current);
-                                                      }
+                                       if (settingsViewModel != null) {
+                                           App.ApplyAppOption(settingsViewModel.Settings.Current);
+                                           OnPropertyChanged(nameof(DefaultUiaVersion));
+                                       }
                                                   }
                                               },
                                               _ => DialogContent is IDialogViewModel { CanClose: true });
@@ -105,6 +106,8 @@ public bool IsBusy {
         set => SetProperty(value);
     }
 
+    public string DefaultUiaVersion => App.FlaUiAppOptions.DefaultUiaVersion;
+
     public ProcessWindowInfo? SelectedProcess {
         get => GetProperty<ProcessWindowInfo>();
         set => SetProperty(value);
diff --git a/src/FlaUInspect/Views/SettingsWindow.xaml b/src/FlaUInspect/Views/SettingsWindow.xaml
index cc287ed..039342b 100644
--- a/src/FlaUInspect/Views/SettingsWindow.xaml
+++ b/src/FlaUInspect/Views/SettingsWindow.xaml
@@ -29,8 +29,15 @@
                   HorizontalAlignment="Left"
                   Header="General"
                   Style="{StaticResource GroupBoxStyle}">
-            <CheckBox Content="Auto close on process exit"
-                      IsChecked="{Binding Settings.Current.AutoCloseOnProcessExit}" />
+            <StackPanel>
+                <CheckBox Content="Auto close on process exit"
+                          IsChecked="{Binding Settings.Current.AutoCloseOnProcessExit}" />
+                <TextBlock Margin="0,8,0,2"
+                           Foreground="{DynamicResource TextBrush}"
+                           Text="Default UIA version (double-click):" />
+                <ComboBox ItemsSource="{Binding UiaVersions}"
+                          SelectedItem="{Binding Settings.Current.DefaultUiaVersion}" />
+            </StackPanel>
         </GroupBox>
         <WrapPanel>
             <GroupBox Header="Application pick overlay">
diff --git a/src/FlaUInspect/Views/StartupWindow.xaml b/src/FlaUInspect/Views/StartupWindow.xaml
index d8b7b41..ac1a54d 100644
--- a/src/FlaUInspect/Views/StartupWindow.xaml
+++ b/src/FlaUInspect/Views/StartupWindow.xaml
@@ -62,13 +62,7 @@
                 </Grid>
             </StackPanel>
             <Grid IsEnabled="{Binding IsBusy, Converter={StaticResource InvertBooleanConverter}}">
-                <Grid.ColumnDefinitions>
-                    <ColumnDefinition Width="5*" />
-                    <ColumnDefinition Width="Auto" />
-                    <ColumnDefinition Width="*" />
-                </Grid.ColumnDefinitions>
-                <DockPanel Grid.Column="0"
-                           Margin="8"
+                <DockPanel Margin="8"
                            LastChildFill="True">
                     <Button Width="128"
                             HorizontalAlignment="Left"
@@ -107,22 +101,79 @@
                                 Background="{DynamicResource PrimaryBorderBrush}"
                                 DockPanel.Dock="Bottom" />
                         <Grid DockPanel.Dock="Bottom">
-                            <TextBlock Text="Double click to open by selected UIA." />
+                            <TextBlock Text="Double-click to open with default UIA version." />
                         </Grid>
                         <Grid>
                             <ListBox x:Name="ProcessesListBox"
+                                     HorizontalContentAlignment="Stretch"
                                      ItemsSource="{Binding FilteredProcesses}"
                                      MouseDoubleClick="ProcessesListBoxOnMouseDoubleClick"
                                      SelectedItem="{Binding SelectedProcess}"
                                      Visibility="{Binding Processes.Count, Converter={StaticResource IntToVisibilityConverter}, ConverterParameter=GreaterThanZero}">
                                 <ListBox.ItemTemplate>
                                     <DataTemplate DataType="{x:Type viewModels:ProcessWindowInfo}">
-                                        <TextBlock>
-                                            <Run Text="[" />
-                                            <Run Text="{Binding ProcessId}" />
-                                            <Run Text="] " />
-                                            <Run Text="{Binding WindowTitle}" />
-                                        </TextBlock>
+                                        <Grid>
+                                            <Grid.ColumnDefinitions>
+                                                <ColumnDefinition Width="*" />
+                                                <ColumnDefinition Width="Auto" />
+                                            </Grid.ColumnDefinitions>
+                                            <TextBlock Grid.Column="0"
+                                                       Padding="2"
+                                                       VerticalAlignment="Center"
+                                                       TextTrimming="CharacterEllipsis">
+                                                <Run Text="[" />
+                                                <Run Text="{Binding ProcessId}" />
+                                                <Run Text="] " />
+                                                <Run Text="{Binding WindowTitle}" />
+                                            </TextBlock>
+                                            <StackPanel x:Name="UiaPanel"
+                                                        Grid.Column="1"
+                                                        VerticalAlignment="Center"
+                                                        Orientation="Horizontal"
+                                                        Visibility="Collapsed">
+                                                <Button Width="48"
+                                                        Margin="0,0,4,0"
+                                                        Padding="6,2"
+                                                        Click="Uia2Click"
+                                                        Content="UIA2">
+                                                    <Button.Style>
+                                                        <Style BasedOn="{StaticResource {x:Type Button}}"
+                                                               TargetType="Button">
+                                                            <Style.Triggers>
+                                                                <DataTrigger Binding="{Binding DataContext.DefaultUiaVersion, RelativeSource={RelativeSource AncestorType=Window}}"
+                                                                             Value="UIA2">
+                                                                    <Setter Property="Background" Value="{DynamicResource AccentBrush}" />
+                                                                    <Setter Property="Foreground" Value="White" />
+                                                                </DataTrigger>
+                                                            </Style.Triggers>
+                                                        </Style>
+                                                    </Button.Style>
+                                                </Button>
+                                                <Button Width="48"
+                                                        Padding="6,2"
+                                                        Click="Uia3Click"
+                                                        Content="UIA3">
+                                                    <Button.Style>
+                                                        <Style BasedOn="{StaticResource {x:Type Button}}"
+                                                               TargetType="Button">
+                                                            <Style.Triggers>
+                                                                <DataTrigger Binding="{Binding DataContext.DefaultUiaVersion, RelativeSource={RelativeSource AncestorType=Window}}"
+                                                                             Value="UIA3">
+                                                                    <Setter Property="Background" Value="{DynamicResource AccentBrush}" />
+                                                                    <Setter Property="Foreground" Value="White" />
+                                                                </DataTrigger>
+                                                            </Style.Triggers>
+                                                        </Style>
+                                                    </Button.Style>
+                                                </Button>
+                                            </StackPanel>
+                                        </Grid>
+                                        <DataTemplate.Triggers>
+                                            <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=ListBoxItem}}"
+                                                         Value="True">
+                                                <Setter TargetName="UiaPanel" Property="Visibility" Value="Visible" />
+                                            </DataTrigger>
+                                        </DataTemplate.Triggers>
                                     </DataTemplate>
                                 </ListBox.ItemTemplate>
                             </ListBox>
@@ -133,66 +184,6 @@
                         </Grid>
                     </DockPanel>
                 </DockPanel>
-
-                <Border Grid.Column="1"
-                        Width="1"
-                        Margin="8"
-                        VerticalAlignment="Stretch"
-                        Background="{DynamicResource PrimaryBorderBrush}" />
-
-                <StackPanel Grid.Column="2"
-                            HorizontalAlignment="Center"
-                            VerticalAlignment="Center"
-                            IsEnabled="{Binding IsBusy, Converter={StaticResource InvertBooleanConverter}}"
-                            Orientation="Vertical">
-                    <StackPanel.Resources>
-                        <Style BasedOn="{StaticResource {x:Type Button}}"
-                               TargetType="{x:Type Button}">
-                            <Setter Property="Margin" Value="10" />
-                        </Style>
-                    </StackPanel.Resources>
-                    <DockPanel LastChildFill="True">
-                        <RadioButton x:Name="Uia2RadioButton"
-                                     VerticalAlignment="Center"
-                                     DockPanel.Dock="Left"
-                                     GroupName="UiaVersion" />
-                        <Button Padding="10"
-                                Click="Uia2Click"
-                                IsEnabled="{Binding ElementName=ProcessesListBox, Path=SelectedItem, Converter={StaticResource NullToVisibilityConverter}}">
-                            <StackPanel Orientation="Vertical">
-                                <Viewbox Width="48"
-                                         Height="48"
-                                         Stretch="Uniform">
-                                    <ContentControl Content="{StaticResource Uia2Icon}" />
-                                </Viewbox>
-                                <TextBlock TextAlignment="Center">
-                                    UIA2<LineBreak />
-                                    Uia2Icon</TextBlock>
-                            </StackPanel>
-                        </Button>
-                    </DockPanel>
-                    <DockPanel LastChildFill="True">
-                        <RadioButton x:Name="Uia3RadioButton"
-                                     VerticalAlignment="Center"
-                                     DockPanel.Dock="Left"
-                                     GroupName="UiaVersion"
-                                     IsChecked="True" />
-                        <Button Padding="10"
-                                Click="Uia3Click"
-                                IsEnabled="{Binding ElementName=ProcessesListBox, Path=SelectedItem, Converter={StaticResource NullToVisibilityConverter}}">
-                            <StackPanel Orientation="Vertical">
-                                <Viewbox Width="48"
-                                         Height="48"
-                                         Stretch="Uniform">
-                                    <ContentControl Content="{StaticResource Uia3Icon}" />
-                                </Viewbox>
-                                <TextBlock TextAlignment="Center">
-                                    UIA3<LineBreak />
-                                    Uia3Icon</TextBlock>
-                            </StackPanel>
-                        </Button>
-                    </DockPanel>
-                </StackPanel>
             </Grid>
         </DockPanel>
         <Grid Background="#cc000000"
diff --git a/src/FlaUInspect/Views/StartupWindow.xaml.cs b/src/FlaUInspect/Views/StartupWindow.xaml.cs
index 3d73086..c498721 100644
--- a/src/FlaUInspect/Views/StartupWindow.xaml.cs
+++ b/src/FlaUInspect/Views/StartupWindow.xaml.cs
@@ -27,10 +27,12 @@ public StartupWindow(InternalLogger logger) {
     }
 
     private void Uia2Click(object sender, RoutedEventArgs e) {
+        e.Handled = true;
         OpenProcessWindow(new UIA2Automation());
     }
 
     private void Uia3Click(object sender, RoutedEventArgs e) {
+        e.Handled = true;
         OpenProcessWindow(new UIA3Automation());
     }
 
@@ -80,9 +82,9 @@ private void PickWindowButton_PreviewMouseDown(object sender, MouseButtonEventAr
     }
 
     private void ProcessesListBoxOnMouseDoubleClick(object sender, MouseButtonEventArgs e) {
-        if (Uia2RadioButton.IsChecked == true) {
+        if (App.FlaUiAppOptions.DefaultUiaVersion == "UIA2") {
             OpenProcessWindow(new UIA2Automation());
-        } else if (Uia3RadioButton.IsChecked == true) {
+        } else {
             OpenProcessWindow(new UIA3Automation());
         }
     }