diff --git a/.gitignore b/.gitignore
index 49e42ad..c67e8f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -287,3 +287,4 @@ __pycache__/
 *.odx.cs
 *.xsd.cs
 /FluentPrismRegionAdapter/phirSOFT.FluentPrismAdapter.Samples
+/phirSOFT.FluentPrismAdapter.Samples
diff --git a/GitVersion.yml b/GitVersion.yml
new file mode 100644
index 0000000..390cf51
--- /dev/null
+++ b/GitVersion.yml
@@ -0,0 +1,5 @@
+assembly-versioning-scheme: MajorMinorPatch
+mode: ContinuousDeployment
+branches: {}
+ignore:
+  sha: []
diff --git a/appveyor.yml b/appveyor.yml
index dbed26c..e63d2bd 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,8 +1,4 @@
-version: 0.0.{build}
-branches:
-  only:
-  - master
-skip_non_tags: true
+skip_tags: true
 image: Visual Studio 2017
 configuration: Release
 skip_commits:
@@ -11,14 +7,6 @@ skip_commits:
     - '**/*.html'
     - '**/*.md'
     - appveyor.yml
-assembly_info:
-  patch: true
-  file: '**\AssemblyInfo.*'
-  assembly_version: '{version}'
-  assembly_file_version: '{version}'
-  assembly_informational_version: '{version}'
-before_build:
-- cmd: nuget restore
 build:
   publish_nuget: true
   publish_nuget_symbols: true
@@ -35,3 +23,17 @@ deploy:
     secure: I0crkaDLJwNba1txPPCrj0pKaFMbzxKHPIZ7hNYP1Wy6yVJ7s3napz/nEv38L/3/
   on:
     branch: master
+install:
+  - choco install gitversion.portable -pre -y
+
+assembly_info:
+  patch: false
+
+before_build:
+  - nuget restore
+  - ps: gitversion /l console /output buildserver /updateAssemblyInfo
+
+#after_build:
+#  - cmd: ECHO nuget pack <Project>\<NuSpec>.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
+#  - cmd: nuget pack <Project>\<NuSpec>.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
+#  - cmd: appveyor PushArtifact "<NuSpec>.%GitVersion_NuGetVersion%.nupkg"
diff --git a/phirSOFT.FluentPrismAdapters/ApplicationMenuRegionAdapter.cs b/phirSOFT.FluentPrismAdapters/ApplicationMenuRegionAdapter.cs
new file mode 100644
index 0000000..aa93fe5
--- /dev/null
+++ b/phirSOFT.FluentPrismAdapters/ApplicationMenuRegionAdapter.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Fluent;
+using Prism.Regions;
+using phirSOFT.TopologicalComparison;
+
+namespace phirSOFT.FluentPrismAdapters
+{
+    /// <summary>
+    /// Provides a region adadpter dor an application menu.
+    /// </summary>
+    public class ApplicationMenuRegionAdapter : TopologicalSortedRegionAdapterBase<ApplicationMenu>
+    {
+        public ApplicationMenuRegionAdapter(IRegionBehaviorFactory regionBehaviorFactory) : base(regionBehaviorFactory)
+        {
+        }
+
+        protected override IList GetItemCollection(ApplicationMenu container)
+        {
+            return container.Items;
+        }
+
+        public static void DeepMerge(ApplicationMenu target, ApplicationMenu source)
+        {
+            var comparer = GetComparer(target);
+            foreach (var sourceItem in source.Items)
+            {
+                if (comparer != null)
+                    target.Items.Insert(sourceItem, comparer);
+                else
+                    target.Items.Add(sourceItem);
+            }
+        }
+    }
+}
diff --git a/phirSOFT.FluentPrismAdapters/IUiElementMerger.cs b/phirSOFT.FluentPrismAdapters/IUiElementMerger.cs
new file mode 100644
index 0000000..96f8fa3
--- /dev/null
+++ b/phirSOFT.FluentPrismAdapters/IUiElementMerger.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace phirSOFT.FluentPrismAdapters
+{
+    interface IUiElementMerger<in T> where T : UIElement
+    {
+        void Merge(T target, T other);
+
+        void Split(T target, T other);
+    }
+}
diff --git a/phirSOFT.FluentPrismAdapters/RibbonRegionAdapter.cs b/phirSOFT.FluentPrismAdapters/RibbonRegionAdapter.cs
index 7127859..6b2f2db 100644
--- a/phirSOFT.FluentPrismAdapters/RibbonRegionAdapter.cs
+++ b/phirSOFT.FluentPrismAdapters/RibbonRegionAdapter.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections;
+using System.Collections.Specialized;
 using System.Windows;
 using Fluent;
+using phirSOFT.TopologicalComparison;
 using Prism.Regions;
 
 namespace phirSOFT.FluentPrismAdapters
@@ -27,10 +29,20 @@ protected override IList GetItemCollection(Ribbon container, DependencyObject it
                     return container.QuickAccessItems;
                 case RibbonContextualTabGroup _:
                     return container.ContextualGroups;
+                case Ribbon ribbon:
+                    DeepMerge(container, ribbon);
+                    break;
+                case BackstageTabItem _:
+                    return ((container.Menu as Backstage)?.Content as BackstageTabControl)?.Items;
                 case UIElement _:
                     return container.ToolBarItems;
             }
             return null;
         }
+
+        private static void DeepMerge(Ribbon target, Ribbon source)
+        {
+            
+        }
     }
 }
\ No newline at end of file
diff --git a/phirSOFT.FluentPrismAdapters/TopologicalSortedRegionAdapterBase.cs b/phirSOFT.FluentPrismAdapters/TopologicalSortedRegionAdapterBase.cs
index f3f6cd4..987d341 100644
--- a/phirSOFT.FluentPrismAdapters/TopologicalSortedRegionAdapterBase.cs
+++ b/phirSOFT.FluentPrismAdapters/TopologicalSortedRegionAdapterBase.cs
@@ -46,9 +46,9 @@ protected virtual void UpdateRegion(object sender, NotifyCollectionChangedEventA
                         var list = GetItemCollection(regionTarget, item);
                         var comparer = GetComparer(regionTarget);
                         if (comparer != null)
-                            list.Insert(item, comparer);
+                            list?.Insert(item, comparer);
                         else
-                            list.Add(item);
+                            list?.Add(item);
                     }
 
                     break;
@@ -56,7 +56,7 @@ protected virtual void UpdateRegion(object sender, NotifyCollectionChangedEventA
                     foreach (DependencyObject item in args.NewItems)
                     {
                         var list = GetItemCollection(regionTarget, item);
-                        list.Remove(item);
+                        list?.Remove(item);
                     }
 
                     break;
diff --git a/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.csproj b/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.csproj
index 86a0f46..9051a47 100644
--- a/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.csproj
+++ b/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.csproj
@@ -114,6 +114,7 @@
     <Reference Include="System.Windows.Interactivity, Version=4.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\packages\Prism.Wpf.7.0.0.336-pre\lib\net45\System.Windows.Interactivity.dll</HintPath>
     </Reference>
+    <Reference Include="System.Xaml" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -126,8 +127,10 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AfterAttribute.cs" />
+    <Compile Include="ApplicationMenuRegionAdapter.cs" />
     <Compile Include="BackstageTabControlRegionAdapter.cs" />
     <Compile Include="BeforeAttribute.cs" />
+    <Compile Include="IUiElementMerger.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RelativePositionContraint.cs" />
     <Compile Include="RibbonMenuRegionAdapter.cs" />
@@ -138,7 +141,7 @@
   <ItemGroup>
     <None Include="app.config" />
     <None Include="packages.config" />
-    <None Include="phirSOFT.FluentPrismRegionAdapters.nuspec" />
+    <None Include="phirSOFT.FluentPrismAdapters.nuspec" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.nuspec b/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.nuspec
index f326f80..b90b995 100644
--- a/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.nuspec
+++ b/phirSOFT.FluentPrismAdapters/phirSOFT.FluentPrismAdapters.nuspec
@@ -3,9 +3,9 @@
   <metadata>
     <id>phirSOFT.FluentPrismAdapters</id>
     <version>$version$</version>
-    <title>$title$</title>
-    <authors>$author$</authors>
-    <owners>$author$</owners>
+    <title>phirSOFT.FluentPrismAdapters</title>
+    <authors>phirSOFT</authors>
+    <owners>phirSOFT</owners>
     <projectUrl>https://github.com/phirSOFT/FluentPrismAdapters</projectUrl>
     <licenseUrl>https://github.com/phirSOFT/FluentPrismAdapters/blob/master/LICENSE</licenseUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>