Index: Core/Common/src/Core.Common.Controls/Command.cs
===================================================================
diff -u -r932f87dd8538c3d52638a93e81ef631fbc9d763e -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Common/src/Core.Common.Controls/Command.cs	(.../Command.cs)	(revision 932f87dd8538c3d52638a93e81ef631fbc9d763e)
+++ Core/Common/src/Core.Common.Controls/Command.cs	(.../Command.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -1,29 +1,23 @@
 namespace Core.Common.Controls
 {
     /// <summary>
-    /// Linking command to button. <a href="http://jasonkemp.ca/archive/2006/05/16/UsingtheCommandPatterninWindowsFormsclients.aspx">Using the Command Pattern in Windows Forms clients.</a>
+    /// Abstract class that can be derivied for defining the behaviour of (Ribbon) buttons and/or menu items.
     /// </summary>
-    /// <example>
-    /// This example demonstrates how to create a Button, hook it up to a Command with a minimum of code and let the power of data binding deal with turning the command on and off:
-    /// <code>
-    /// Button button = new Button();
-    /// Command command = new ArbitraryCommand("My Data");
-    /// button.DataBindings.Add("Text", command, "DisplayName");
-    /// button.DataBindings.Add("Enabled", command, "Enabled");
-    /// button.Click += delegate { command.Execute();  };
-    /// </code>
-    /// </example>
     public abstract class Command
     {
+        /// <summary>
+        /// Gets whether or not the <see cref="Command"/> is enabled.
+        /// </summary>
         public abstract bool Enabled { get; }
 
-        public virtual bool Checked { set; get; }
+        /// <summary>
+        /// Gets whether or not the <see cref="Command"/> is checked.
+        /// </summary>
+        public abstract bool Checked { get; }
 
-        public void Execute(params object[] arguments)
-        {
-            OnExecute(arguments);
-        }
-
-        protected abstract void OnExecute(params object[] arguments);
+        /// <summary>
+        /// This method implements the logic that should be performed after clicking the (Ribbon) button and/or menu item.
+        /// </summary>
+        public abstract void Execute(params object[] arguments);
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/ExportChartAsImageCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/ExportChartAsImageCommand.cs	(.../ExportChartAsImageCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/ExportChartAsImageCommand.cs	(.../ExportChartAsImageCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -7,7 +7,7 @@
 {
     public class IncreaseFontSizeCommand : ChartViewCommandBase
     {
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var view = View;
             if (view != null)
@@ -26,7 +26,7 @@
 
     public class DecreaseFontSizeCommand : ChartViewCommandBase
     {
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var view = View;
             if (view != null)
@@ -45,7 +45,7 @@
 
     public class ExportChartAsImageCommand : ChartViewCommandBase
     {
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var view = View;
             if (view != null)
@@ -65,6 +65,14 @@
             }
         }
 
+        public override bool Checked
+        {
+            get
+            {
+                return false;
+            }
+        }
+
         protected ChartView View
         {
             get
@@ -75,8 +83,6 @@
             }
         }
 
-        protected abstract override void OnExecute(params object[] arguments);
-
         protected Font GetChangedFontSize(Font font, int pixels)
         {
             return new Font(font.FontFamily, font.Size + pixels, font.Style);
Index: Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/RulerCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/RulerCommand.cs	(.../RulerCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/RulerCommand.cs	(.../RulerCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -23,7 +23,7 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var view = RulerTool;
             if (view == null || arguments.Length == 0)
Index: Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/ShowChartLegendViewCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/ShowChartLegendViewCommand.cs	(.../ShowChartLegendViewCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Core/Plugins/src/Core.Plugins.CommonTools.Gui/Commands/Charting/ShowChartLegendViewCommand.cs	(.../ShowChartLegendViewCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -26,7 +26,7 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var commonToolsGuiPlugin = Gui.Plugins.OfType<CommonToolsGuiPlugin>().FirstOrDefault();
             if (commonToolsGuiPlugin == null)
Index: Core/Plugins/src/Core.Plugins.ProjectExplorer/Commands/ShowProjectExplorerCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.ProjectExplorer/Commands/ShowProjectExplorerCommand.cs	(.../ShowProjectExplorerCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Core/Plugins/src/Core.Plugins.ProjectExplorer/Commands/ShowProjectExplorerCommand.cs	(.../ShowProjectExplorerCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -25,7 +25,7 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var view = ProjectExplorerGuiPlugin.Instance.ProjectExplorer;
             var active = Gui.ToolWindowViews.Contains(view);
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/CanvasCommand.cs
===================================================================
diff -u -r9df3dc4632e7821cb36847336c6d90654e40ece9 -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/CanvasCommand.cs	(.../CanvasCommand.cs)	(revision 9df3dc4632e7821cb36847336c6d90654e40ece9)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/CanvasCommand.cs	(.../CanvasCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -13,6 +13,6 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments) {}
+        public override void Execute(params object[] arguments) { }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ExportMapAsImageCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ExportMapAsImageCommand.cs	(.../ExportMapAsImageCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ExportMapAsImageCommand.cs	(.../ExportMapAsImageCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -5,7 +5,7 @@
 {
     public class ExportMapAsImageCommand : MapViewCommand
     {
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var exportMapTool = MapView.MapControl.Tools.First(tool => tool is ExportMapToImageMapTool);
             exportMapTool.Execute();
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/LayoutComponentToolCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/LayoutComponentToolCommand.cs	(.../LayoutComponentToolCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/LayoutComponentToolCommand.cs	(.../LayoutComponentToolCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -17,10 +17,6 @@
 
                 return false;
             }
-            set
-            {
-                base.Checked = value;
-            }
         }
 
         protected override IMapTool CurrentTool
@@ -36,7 +32,7 @@
             }
         }
 
-        protected override void OnExecute(object[] arguments)
+        public override void Execute(object[] arguments)
         {
             var layoutComponentTool = CurrentTool as LayoutComponentTool;
             if (layoutComponentTool != null)
@@ -61,8 +57,6 @@
                 // Refresh the map control
                 MapView.MapControl.Refresh();
             }
-
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapAddLayerCommand.cs
===================================================================
diff -u -re5cd358fe021d2c9d042e226cc00db06578619e3 -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapAddLayerCommand.cs	(.../MapAddLayerCommand.cs)	(revision e5cd358fe021d2c9d042e226cc00db06578619e3)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapAddLayerCommand.cs	(.../MapAddLayerCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -63,7 +63,7 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             string path = null;
             if (arguments.Length > 0)
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapChangeCoordinateSystemCommand.cs
===================================================================
diff -u -re5cd358fe021d2c9d042e226cc00db06578619e3 -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapChangeCoordinateSystemCommand.cs	(.../MapChangeCoordinateSystemCommand.cs)	(revision e5cd358fe021d2c9d042e226cc00db06578619e3)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapChangeCoordinateSystemCommand.cs	(.../MapChangeCoordinateSystemCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -14,10 +14,9 @@
             {
                 return false;
             }
-            set {}
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var activeView = SharpMapGisGuiPlugin.GetFocusedMapView();
 
@@ -34,13 +33,9 @@
                 catch (CoordinateTransformException e)
                 {
                     var message = string.Format(Resources.MapChangeCoordinateSystemCommand_OnExecute_Cannot_convert_map_to_selected_coordinate_system_0_,e.Message);
-                    MessageBox.Show(message,
-                                    Resources.MapChangeCoordinateSystemCommand_OnExecute_Map_coordinate_system, MessageBoxButtons.OK, MessageBoxIcon.Error);
-                    base.OnExecute(arguments);
+                    MessageBox.Show(message, Resources.MapChangeCoordinateSystemCommand_OnExecute_Map_coordinate_system, MessageBoxButtons.OK, MessageBoxIcon.Error);
                 }
             }
-
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapFixedZoomInCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapFixedZoomInCommand.cs	(.../MapFixedZoomInCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapFixedZoomInCommand.cs	(.../MapFixedZoomInCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -12,17 +12,14 @@
             {
                 return false;
             }
-            set {}
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             MapView activeView = SharpMapGisGuiPlugin.GetFocusedMapView();
 
             IMapTool tool = activeView.MapControl.GetToolByType<FixedZoomInTool>();
             tool.Execute();
-
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapFixedZoomOutCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapFixedZoomOutCommand.cs	(.../MapFixedZoomOutCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapFixedZoomOutCommand.cs	(.../MapFixedZoomOutCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -11,17 +11,14 @@
             {
                 return false;
             }
-            set {}
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var activeView = SharpMapGisGuiPlugin.GetFocusedMapView();
 
             IMapTool tool = activeView.MapControl.GetToolByType<FixedZoomOutTool>();
             tool.Execute();
-
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapMeasureCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapMeasureCommand.cs	(.../MapMeasureCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapMeasureCommand.cs	(.../MapMeasureCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -16,7 +16,7 @@
             }
         }
 
-        protected override void OnExecute(object[] arguments)
+        public override void Execute(object[] arguments)
         {
             var tool = CurrentTool;
 
@@ -31,8 +31,6 @@
                     MapView.MapControl.ActivateTool(tool);
                 }
             }
-
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapPanZoomCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapPanZoomCommand.cs	(.../MapPanZoomCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapPanZoomCommand.cs	(.../MapPanZoomCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -14,11 +14,10 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             MapView activeView = SharpMapGisGuiPlugin.GetFocusedMapView();
             activeView.MapControl.ActivateTool(CurrentTool);
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapViewCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapViewCommand.cs	(.../MapViewCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapViewCommand.cs	(.../MapViewCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -21,10 +21,6 @@
             {
                 return CurrentTool != null && CurrentTool.IsActive;
             }
-            set
-            {
-                base.Checked = value;
-            }
         }
 
         protected MapView MapView
@@ -50,7 +46,5 @@
                 return null;
             }
         }
-
-        protected override void OnExecute(params object[] arguments) {}
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomHistoryCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomHistoryCommand.cs	(.../MapZoomHistoryCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomHistoryCommand.cs	(.../MapZoomHistoryCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -10,7 +10,6 @@
             {
                 return false;
             }
-            set {}
         }
 
         public ZoomHistoryTool ZoomHistoryToolMapTool
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomInUsingRectangleCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomInUsingRectangleCommand.cs	(.../MapZoomInUsingRectangleCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomInUsingRectangleCommand.cs	(.../MapZoomInUsingRectangleCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -13,11 +13,10 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var activeView = SharpMapGisGuiPlugin.GetFocusedMapView();
             activeView.MapControl.ActivateTool(CurrentTool);
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomNextCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomNextCommand.cs	(.../MapZoomNextCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomNextCommand.cs	(.../MapZoomNextCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -15,12 +15,10 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             ZoomHistoryToolMapTool.NextZoomState();
             MapView.MapControl.Refresh();
-
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomPreviousCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomPreviousCommand.cs	(.../MapZoomPreviousCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomPreviousCommand.cs	(.../MapZoomPreviousCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -15,12 +15,10 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             ZoomHistoryToolMapTool.PreviousZoomState();
             MapView.MapControl.Refresh();
-
-            base.OnExecute(arguments);
         }
     }
 }
\ No newline at end of file
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomToExtentsCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomToExtentsCommand.cs	(.../MapZoomToExtentsCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomToExtentsCommand.cs	(.../MapZoomToExtentsCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -10,15 +10,14 @@
             {
                 return false;
             }
-            set {}
         }
 
         /// <summary>
         /// if arguments is null the active mapview will zoom to it's default extents.
         /// Otherwise the first arguments will be assumed to be a mapview and the active view will zoom to that map extents
         /// </summary>
         /// <param name="arguments"></param>
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             MapView targetView = null;
             if (arguments.Length == 1) //target extent
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomToFeatureCommand.cs
===================================================================
diff -u -r9f01c4daf5b7af6549045ed6ac404d18419c2555 -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomToFeatureCommand.cs	(.../MapZoomToFeatureCommand.cs)	(revision 9f01c4daf5b7af6549045ed6ac404d18419c2555)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/MapZoomToFeatureCommand.cs	(.../MapZoomToFeatureCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -9,7 +9,7 @@
         /// first argument IFeature is expected as 
         /// </summary>
         /// <param name="arguments"></param>
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             MapView activeView = SharpMapGisGuiPlugin.GetFocusedMapView();
             if (activeView == null)
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/SelectCommand.cs
===================================================================
diff -u -ra950714ad9510756331d862aa35695fa0b2ed03b -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/SelectCommand.cs	(.../SelectCommand.cs)	(revision a950714ad9510756331d862aa35695fa0b2ed03b)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/SelectCommand.cs	(.../SelectCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -18,7 +18,7 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             CanvasEditor.IsSelectItemActive = true;
         }
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ShowMapContentsCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ShowMapContentsCommand.cs	(.../ShowMapContentsCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ShowMapContentsCommand.cs	(.../ShowMapContentsCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -26,7 +26,7 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             var sharpMapGisGuiPlugin = Gui.Plugins.OfType<SharpMapGisGuiPlugin>().FirstOrDefault();
             if (sharpMapGisGuiPlugin == null)
Index: Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ZoomLayerCommand.cs
===================================================================
diff -u -r10b304d4b5cb2283801cdb16204baf2a42ab5967 -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ZoomLayerCommand.cs	(.../ZoomLayerCommand.cs)	(revision 10b304d4b5cb2283801cdb16204baf2a42ab5967)
+++ Core/Plugins/src/Core.Plugins.SharpMapGis.Gui/Commands/ZoomLayerCommand.cs	(.../ZoomLayerCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -9,7 +9,7 @@
 {
     public class ZoomLayerCommand : MapViewCommand
     {
-        protected override void OnExecute(params object[] arguments)
+        public override void Execute(params object[] arguments)
         {
             // parameter 0 must be a layer
             ILayer layer = (arguments[0] is ILayer) ? arguments[0] as ILayer : null;
Index: Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDikeAssessmentSectionCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDikeAssessmentSectionCommand.cs	(.../AddNewDemoDikeAssessmentSectionCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDikeAssessmentSectionCommand.cs	(.../AddNewDemoDikeAssessmentSectionCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -24,8 +24,16 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override bool Checked
         {
+            get
+            {
+                return false;
+            }
+        }
+
+        public override void Execute(params object[] arguments)
+        {
             var project = Gui.Project;
             project.Items.Add(CreateNewDemoAssessmentSection());
             project.NotifyObservers();
Index: Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDuneAssessmentSectionCommand.cs
===================================================================
diff -u -r2b1937d120d50436169ef18d9fce57d4400d1bbe -re8aaaf3808e54e4f075eab6f6c58bedf35e0890e
--- Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDuneAssessmentSectionCommand.cs	(.../AddNewDemoDuneAssessmentSectionCommand.cs)	(revision 2b1937d120d50436169ef18d9fce57d4400d1bbe)
+++ Ringtoets/Demo/src/Ringtoets.Demo/Commands/AddNewDemoDuneAssessmentSectionCommand.cs	(.../AddNewDemoDuneAssessmentSectionCommand.cs)	(revision e8aaaf3808e54e4f075eab6f6c58bedf35e0890e)
@@ -17,8 +17,16 @@
             }
         }
 
-        protected override void OnExecute(params object[] arguments)
+        public override bool Checked
         {
+            get
+            {
+                return false;
+            }
+        }
+
+        public override void Execute(params object[] arguments)
+        {
             var project = Gui.Project;
             project.Items.Add(CreateNewDemoAssessmentSection());
             project.NotifyObservers();