diff --git a/src/OneWare.Essentials/Controls/DocumentUiExtensionCollection.axaml b/src/OneWare.Essentials/Controls/DocumentUiExtensionCollection.axaml
new file mode 100644
index 0000000..175b480
--- /dev/null
+++ b/src/OneWare.Essentials/Controls/DocumentUiExtensionCollection.axaml
@@ -0,0 +1,36 @@
+<Styles xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:controls="using:OneWare.Essentials.Controls"
+        xmlns:converters="clr-namespace:OneWare.Essentials.Converters"
+        xmlns:models="clr-namespace:OneWare.Essentials.Models">
+    <Design.PreviewWith>
+        <controls:DocumentUiExtensionCollection />
+    </Design.PreviewWith>
+
+    <Style Selector="controls|DocumentUiExtensionCollection">
+        <!-- Set Defaults -->
+        <Setter Property="Template">
+            <ControlTemplate>
+                <ItemsControl ItemsSource="{TemplateBinding Extensions}">
+                    <ItemsControl.ItemsPanel>
+                        <ItemsPanelTemplate>
+                            <DockPanel HorizontalAlignment="{TemplateBinding HorizontalAlignment}"/>
+                        </ItemsPanelTemplate>
+                    </ItemsControl.ItemsPanel>
+                    <ItemsControl.ItemTemplate>
+                        <DataTemplate x:DataType="models:DocumentUiExtension">
+                            <ContentControl>
+                                <ContentControl.Content>
+                                    <MultiBinding Converter="{x:Static converters:SharedConverters.DocumentUiExtensionConverter}">
+                                        <Binding Path="$parent[controls:DocumentUiExtensionCollection].File"/>
+                                        <Binding Path="."/>
+                                    </MultiBinding>
+                                </ContentControl.Content>
+                            </ContentControl>
+                        </DataTemplate>
+                    </ItemsControl.ItemTemplate>
+                </ItemsControl>
+            </ControlTemplate>
+        </Setter>
+    </Style>
+</Styles>
diff --git a/src/OneWare.Essentials/Controls/DocumentUiExtensionCollection.axaml.cs b/src/OneWare.Essentials/Controls/DocumentUiExtensionCollection.axaml.cs
new file mode 100644
index 0000000..fde9e0c
--- /dev/null
+++ b/src/OneWare.Essentials/Controls/DocumentUiExtensionCollection.axaml.cs
@@ -0,0 +1,40 @@
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using Avalonia;
+using Avalonia.Controls.Primitives;
+using Avalonia.Layout;
+using OneWare.Essentials.Models;
+
+namespace OneWare.Essentials.Controls;
+
+public class DocumentUiExtensionCollection : TemplatedControl
+{
+    public static readonly StyledProperty<IFile?> FileProperty =
+        AvaloniaProperty.Register<DocumentUiExtensionCollection, IFile?>(nameof(File));
+    
+    public static readonly StyledProperty<ObservableCollection<DocumentUiExtension>?> ExtensionsProperty =
+        AvaloniaProperty.Register<DocumentUiExtensionCollection, ObservableCollection<DocumentUiExtension>?>(nameof(Extensions));
+    
+    public static readonly StyledProperty<Orientation> OrientationProperty =
+        AvaloniaProperty.Register<DocumentUiExtensionCollection, Orientation>(nameof(Orientation));
+
+    protected override Type StyleKeyOverride => typeof(DocumentUiExtensionCollection);
+    
+    public IFile? File
+    {
+        get => GetValue(FileProperty);
+        set => SetValue(FileProperty, value);
+    }
+    
+    public ObservableCollection<DocumentUiExtension>? Extensions
+    {
+        get => GetValue(ExtensionsProperty);
+        set => SetValue(ExtensionsProperty, value);
+    }
+    
+    public Orientation Orientation
+    {
+        get => GetValue(OrientationProperty);
+        set => SetValue(OrientationProperty, value);
+    }
+}
\ No newline at end of file
diff --git a/src/OneWare.Essentials/Controls/SharedControls.axaml b/src/OneWare.Essentials/Controls/SharedControls.axaml
index f0436f8..fabbd55 100644
--- a/src/OneWare.Essentials/Controls/SharedControls.axaml
+++ b/src/OneWare.Essentials/Controls/SharedControls.axaml
@@ -5,4 +5,5 @@
   </Styles.Resources>
     
     <StyleInclude Source="avares://OneWare.Essentials/Controls/UiExtensionCollection.axaml" />
+    <StyleInclude Source="avares://OneWare.Essentials/Controls/DocumentUiExtensionCollection.axaml" />
 </Styles>
\ No newline at end of file
diff --git a/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml b/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml
index 5f0835b..70502d4 100644
--- a/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml
+++ b/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml
@@ -14,7 +14,7 @@
                 <ItemsControl ItemsSource="{TemplateBinding Extensions}">
                     <ItemsControl.ItemsPanel>
                         <ItemsPanelTemplate>
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="{TemplateBinding HorizontalAlignment}"/>
+                            <StackPanel Orientation="{TemplateBinding Orientation}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}"/>
                         </ItemsPanelTemplate>
                     </ItemsControl.ItemsPanel>
                     <ItemsControl.ItemTemplate>
diff --git a/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml.cs b/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml.cs
index 122ea2c..68711f7 100644
--- a/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml.cs
+++ b/src/OneWare.Essentials/Controls/UiExtensionCollection.axaml.cs
@@ -2,6 +2,7 @@
 using System.Collections.Specialized;
 using Avalonia;
 using Avalonia.Controls.Primitives;
+using Avalonia.Layout;
 using OneWare.Essentials.Models;
 
 namespace OneWare.Essentials.Controls;
@@ -9,29 +10,22 @@ namespace OneWare.Essentials.Controls;
 public class UiExtensionCollection : TemplatedControl
 {
     public static readonly StyledProperty<ObservableCollection<UiExtension>?> ExtensionsProperty =
-        AvaloniaProperty.Register<UiExtensionCollection, ObservableCollection<UiExtension>?>(nameof(UiExtensionCollection));
+        AvaloniaProperty.Register<UiExtensionCollection, ObservableCollection<UiExtension>?>(nameof(Extensions));
+    
+    public static readonly StyledProperty<Orientation> OrientationProperty =
+        AvaloniaProperty.Register<UiExtensionCollection, Orientation>(nameof(Orientation));
 
     protected override Type StyleKeyOverride => typeof(UiExtensionCollection);
     
     public ObservableCollection<UiExtension>? Extensions
     {
         get => GetValue(ExtensionsProperty);
-        set
-        {
-            if(Extensions != null)
-                Extensions.CollectionChanged -= OnExtensionsChanged;
-            
-            SetValue(ExtensionsProperty, value);
-            
-            if (value == null)
-                return;
-
-            value.CollectionChanged += OnExtensionsChanged;
-        } 
+        set => SetValue(ExtensionsProperty, value);
     }
     
-    private void OnExtensionsChanged(object? sender, NotifyCollectionChangedEventArgs e)
+    public Orientation Orientation
     {
-        
+        get => GetValue(OrientationProperty);
+        set => SetValue(OrientationProperty, value);
     }
 }
\ No newline at end of file
diff --git a/src/OneWare.Essentials/Converters/DocumentUiExtensionConverter.cs b/src/OneWare.Essentials/Converters/DocumentUiExtensionConverter.cs
new file mode 100644
index 0000000..430c65c
--- /dev/null
+++ b/src/OneWare.Essentials/Converters/DocumentUiExtensionConverter.cs
@@ -0,0 +1,26 @@
+using System.Globalization;
+using Avalonia.Controls;
+using Avalonia.Data.Converters;
+using OneWare.Essentials.Models;
+
+namespace OneWare.Essentials.Converters;
+
+public class DocumentUiExtensionConverter : IMultiValueConverter
+{
+    public object? Convert(IList<object?> values, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (values.Count != 2) return null;
+        
+        var file = values[0] as IFile;
+        var uiExtension = values[1] as DocumentUiExtension;
+        
+        if(file == null || uiExtension == null) return null;
+
+        if (Activator.CreateInstance(uiExtension.Type) is Control control)
+        {
+            control.DataContext = uiExtension.CreateDataContext(file);
+            return control;
+        }
+        return null;
+    }
+}
\ No newline at end of file
diff --git a/src/OneWare.Essentials/Converters/SharedConverters.cs b/src/OneWare.Essentials/Converters/SharedConverters.cs
index 9718493..5da8481 100644
--- a/src/OneWare.Essentials/Converters/SharedConverters.cs
+++ b/src/OneWare.Essentials/Converters/SharedConverters.cs
@@ -9,6 +9,7 @@ public static readonly IValueConverter
     public static readonly IValueConverter
         BoolToScrollBarVisibilityConverter = new BoolToScrollBarVisibilityConverter();
     public static readonly IValueConverter UiExtensionToControlConverter = new UiExtensionToControlConverter();
+    public static readonly IMultiValueConverter DocumentUiExtensionConverter = new DocumentUiExtensionConverter();
     public static readonly IValueConverter ComparisonConverter = new ComparisonConverter();
     public static readonly IValueConverter EnumToStringConverter = new EnumToStringConverter();
     public static readonly IValueConverter FileOpacityConverter = new FileOpacityConverter();
diff --git a/src/OneWare.Essentials/Models/DocumentUiExtension.cs b/src/OneWare.Essentials/Models/DocumentUiExtension.cs
new file mode 100644
index 0000000..1bb769f
--- /dev/null
+++ b/src/OneWare.Essentials/Models/DocumentUiExtension.cs
@@ -0,0 +1,8 @@
+namespace OneWare.Essentials.Models;
+
+public class DocumentUiExtension(Type type, Func<IFile, object?> createDataContext)
+{
+    public Type Type { get; } = type;
+
+    public Func<IFile, object?> CreateDataContext { get; } = createDataContext;
+}
\ No newline at end of file
diff --git a/src/OneWare.Essentials/OneWare.Essentials.csproj b/src/OneWare.Essentials/OneWare.Essentials.csproj
index 455bf28..28a4113 100644
--- a/src/OneWare.Essentials/OneWare.Essentials.csproj
+++ b/src/OneWare.Essentials/OneWare.Essentials.csproj
@@ -36,5 +36,12 @@
     <ItemGroup>
         <None Include="readme.md" Pack="true" PackagePath=""/>
     </ItemGroup>
+
+    <ItemGroup>
+      <Compile Update="Controls\DocumentUiExtensionCollection.axaml.cs">
+        <DependentUpon>DocumentUiExtensionCollection.axaml</DependentUpon>
+        <SubType>Code</SubType>
+      </Compile>
+    </ItemGroup>
     
 </Project> 
diff --git a/src/OneWare.Essentials/Services/IDockService.cs b/src/OneWare.Essentials/Services/IDockService.cs
index 197d227..d82ccfa 100644
--- a/src/OneWare.Essentials/Services/IDockService.cs
+++ b/src/OneWare.Essentials/Services/IDockService.cs
@@ -1,3 +1,4 @@
+using System.Collections.ObjectModel;
 using System.ComponentModel;
 using Avalonia.Controls;
 using Dock.Model.Core;
@@ -18,6 +19,10 @@ public interface IDockService : INotifyPropertyChanged
     
     public void RegisterDocumentView<T>(params string[] extensions) where T : IExtendedDocument;
     
+    public ObservableCollection<DocumentUiExtension> GetDocumentViewExtensions(string key);
+    
+    public void RegisterDocumentViewExtension<T>(string key, Func<IFile,object?> createDataContext);
+    
     public void RegisterLayoutExtension<T>(DockShowLocation location);
     
     public void Show<T>(DockShowLocation location = DockShowLocation.Window) where T : IDockable;