diff --git a/CHANGELOG.md b/CHANGELOG.md
index eaed42b..e372472 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [0.2.2] / 2023-08-14
+### Features
+- Add `XmlnsPrefix` and `XmlnsDefinition` to `Revit.Busy` namespace.
 ### Updated
 - Update references to work with net code.
 - Clear main project and move files to `Example`
diff --git a/Directory.Build.props b/Directory.Build.props
index dc550c4..428e9f9 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,5 +1,5 @@
 <Project>
 	<PropertyGroup>
-		<Version>0.2.2-alpha</Version>
+		<Version>0.2.2-alpha.1</Version>
 	</PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/README.md b/README.md
index 76bfcfc..abdeace 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ RevitBusyControl.Initialize(application);
 
 Binding to the `IsRevitBusy` property.
 ```xml
-xmlns:busy="clr-namespace:Revit.Busy"
+xmlns:busy="http://schemas.revit.busy.com/2024/xaml/presentation"
 ```
 ```xml
 {Binding IsRevitBusy, Source={x:Static busy:RevitBusyControl.Control}}
diff --git a/Revit.Busy.Example/Revit/App.cs b/Revit.Busy.Example/Revit/App.cs
index 0f33355..ae870ba 100644
--- a/Revit.Busy.Example/Revit/App.cs
+++ b/Revit.Busy.Example/Revit/App.cs
@@ -13,7 +13,7 @@ public class App : IExternalApplication
         public static IRevitTask RevitTask => revitTaskService;
 
         private static RibbonPanel ribbonPanel;
-        private static RevitBusyService RevitBusyService;
+        public static RevitBusyService RevitBusyService;
         public Result OnStartup(UIControlledApplication application)
         {
             revitTaskService = new RevitTaskService(application);
@@ -27,6 +27,7 @@ public Result OnStartup(UIControlledApplication application)
                 .SetLargeImage("/UIFrameworkRes;component/ribbon/images/revit.ico");
 
             RevitBusyService = new RevitBusyService(application);
+            RevitBusyService.SetInterval(100);
             RevitBusyService.PropertyChanged += (s, e) =>
             {
                 UpdateLargeImageBusy(ribbonItem, RevitBusyService.IsRevitBusy);
diff --git a/Revit.Busy.Example/Revit/Views/BusyView.xaml b/Revit.Busy.Example/Revit/Views/BusyView.xaml
index 1a82115..37d9a2a 100644
--- a/Revit.Busy.Example/Revit/Views/BusyView.xaml
+++ b/Revit.Busy.Example/Revit/Views/BusyView.xaml
@@ -5,23 +5,30 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:Revit.Busy.Example.Revit.Views"
-        xmlns:busy="clr-namespace:Revit.Busy.Example.Revit.Views"
+        xmlns:busy="http://schemas.revit.busy.com/2024/xaml/presentation"
         mc:Ignorable="d"
-        Background="WhiteSmoke"
-        >
-        <!--Title="{Binding IsRevitBusy, Source={x:Static busy:RevitBusyControl.Control}}"-->
+        Background="WhiteSmoke">
 
     <Window.Resources>
         <local:InverseBooleanConverter x:Key="InverseBooleanConverter" />
     </Window.Resources>
-    
-    <Grid Margin="15">
-        <Grid IsEnabled="{Binding IsRevitBusy, Source={x:Static busy:Controls.Control}, Converter={StaticResource InverseBooleanConverter}}">
+
+    <StackPanel Margin="15">
+        <ProgressBar Height="24"
+                     IsIndeterminate="{Binding IsRevitBusy, Source={x:Static busy:RevitBusyControl.Control}}" />
+        <Grid Margin="4" />
+        <StackPanel IsEnabled="{Binding IsRevitBusy, Source={x:Static local:RevitBusyControl.Control}, Converter={StaticResource InverseBooleanConverter}}">
+            <Button HorizontalAlignment="Center"
+                    VerticalAlignment="Center"
+                    Height="24"
+                    Width="240"
+                    Command="{Binding ButtonCommand}">Create Wall</Button>
+            <Grid Margin="4" />
             <Button HorizontalAlignment="Center"
                     VerticalAlignment="Center"
-                    Height="120"
-                    Width="120"
-                    Command="{Binding ButtonCommand}">Wall</Button>
-        </Grid>
-    </Grid>
+                    Height="24"
+                    Width="240"
+                    Command="{Binding ButtonDeleteCommand}">Delete Element</Button>
+        </StackPanel>
+    </StackPanel>
 </Window>
diff --git a/Revit.Busy.Example/Revit/Views/BusyView.xaml.cs b/Revit.Busy.Example/Revit/Views/BusyView.xaml.cs
index bf394bb..b99c5df 100644
--- a/Revit.Busy.Example/Revit/Views/BusyView.xaml.cs
+++ b/Revit.Busy.Example/Revit/Views/BusyView.xaml.cs
@@ -11,6 +11,7 @@ namespace Revit.Busy.Example.Revit.Views
     public partial class BusyView : Window
     {
         public IAsyncRelayCommand ButtonCommand { get; private set; }
+        public IAsyncRelayCommand ButtonDeleteCommand { get; private set; }
         public BusyView()
         {
             ButtonCommand = new AsyncRelayCommand(async () =>
@@ -25,6 +26,18 @@ await App.RevitTask.Run((uiapp) =>
                 });
             });
 
+            ButtonDeleteCommand = new AsyncRelayCommand(async () =>
+            {
+                await App.RevitTask.Run((uiapp) =>
+                {
+                    uiapp.PostCommand(Autodesk.Revit.UI.RevitCommandId.LookupPostableCommandId(Autodesk.Revit.UI.PostableCommand.Delete));
+                });
+                await App.RevitTask.Run((uiapp) =>
+                {
+                    // This is just to force the `AsyncRelayCommand` to wait the PostCommand to finish.
+                });
+            });
+
             this.Title = "Wall - BusyView";
             InitializeComponent();
             InitializeWindow();
@@ -42,9 +55,9 @@ private void InitializeWindow()
         #endregion
     }
 
-    public class Controls
+    public class RevitBusyControl
     {
-        public static RevitBusyService Control => RevitBusyControl.Control;
+        public static RevitBusyService Control => App.RevitBusyService;
     }
 
     [ValueConversion(typeof(bool), typeof(bool))]
diff --git a/Revit.Busy/Properties/AssemblyInfo.cs b/Revit.Busy/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..46e199b
--- /dev/null
+++ b/Revit.Busy/Properties/AssemblyInfo.cs
@@ -0,0 +1,4 @@
+using System;
+using System.Windows.Markup;
+[assembly: XmlnsPrefix("http://schemas.revit.busy.com/2024/xaml/presentation", "revit.busy")]
+[assembly: XmlnsDefinition("http://schemas.revit.busy.com/2024/xaml/presentation", "Revit.Busy")]
\ No newline at end of file