diff --git a/DesignTools/Operations/Align3D.cs b/DesignTools/Operations/Align3D.cs
index d206a3d9e..d4e524e4b 100644
--- a/DesignTools/Operations/Align3D.cs
+++ b/DesignTools/Operations/Align3D.cs
@@ -328,9 +328,9 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/ArrayLinear3D.cs b/DesignTools/Operations/ArrayLinear3D.cs
index e26bdd357..919ce1527 100644
--- a/DesignTools/Operations/ArrayLinear3D.cs
+++ b/DesignTools/Operations/ArrayLinear3D.cs
@@ -59,9 +59,9 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/ArrayRadial3D.cs b/DesignTools/Operations/ArrayRadial3D.cs
index edd5bacc2..570d5fb4c 100644
--- a/DesignTools/Operations/ArrayRadial3D.cs
+++ b/DesignTools/Operations/ArrayRadial3D.cs
@@ -73,9 +73,9 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/CurveObject3D.cs b/DesignTools/Operations/CurveObject3D.cs
index 51bb98827..2418aee4f 100644
--- a/DesignTools/Operations/CurveObject3D.cs
+++ b/DesignTools/Operations/CurveObject3D.cs
@@ -180,9 +180,9 @@ namespace MatterHackers.MatterControl.DesignTools
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/FitToBounds3D.cs b/DesignTools/Operations/FitToBounds3D.cs
index 3c9bbfcbe..eb07554cf 100644
--- a/DesignTools/Operations/FitToBounds3D.cs
+++ b/DesignTools/Operations/FitToBounds3D.cs
@@ -119,9 +119,9 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/Image/ImageToPath.cs b/DesignTools/Operations/Image/ImageToPath.cs
index 06abe4db4..b87815644 100644
--- a/DesignTools/Operations/Image/ImageToPath.cs
+++ b/DesignTools/Operations/Image/ImageToPath.cs
@@ -222,7 +222,7 @@ namespace MatterHackers.MatterControl.DesignTools
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if (invalidateType.InvalidateType.HasFlag(InvalidateType.Image)
+			if (invalidateType.InvalidateType == InvalidateType.Image
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/Image/LinearExtrude.cs b/DesignTools/Operations/Image/LinearExtrude.cs
index 6e94c0543..cfa33c125 100644
--- a/DesignTools/Operations/Image/LinearExtrude.cs
+++ b/DesignTools/Operations/Image/LinearExtrude.cs
@@ -41,6 +41,9 @@ namespace MatterHackers.MatterControl.DesignTools
 	{
 		public double Height { get; set; } = 5;
 
+		public override bool CanApply => true;
+		public override bool CanRemove => true;
+
 		[JsonIgnore]
 		private IVertexSource VertexSource
 		{
@@ -63,9 +66,9 @@ namespace MatterHackers.MatterControl.DesignTools
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Path))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Path)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/Path/SmoothPath.cs b/DesignTools/Operations/Path/SmoothPath.cs
index 97f0edbb1..766e9e46e 100644
--- a/DesignTools/Operations/Path/SmoothPath.cs
+++ b/DesignTools/Operations/Path/SmoothPath.cs
@@ -61,9 +61,9 @@ namespace MatterHackers.MatterControl.DesignTools.Operations
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Path))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Path)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Operations/PinchObject3D.cs b/DesignTools/Operations/PinchObject3D.cs
index 216f1e1f1..c21e2c2db 100644
--- a/DesignTools/Operations/PinchObject3D.cs
+++ b/DesignTools/Operations/PinchObject3D.cs
@@ -101,9 +101,9 @@ namespace MatterHackers.MatterControl.DesignTools
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/DesignTools/Primitives/BaseObject3D.cs b/DesignTools/Primitives/BaseObject3D.cs
index 26c7cfc08..805797b1f 100644
--- a/DesignTools/Primitives/BaseObject3D.cs
+++ b/DesignTools/Primitives/BaseObject3D.cs
@@ -105,10 +105,10 @@ namespace MatterHackers.MatterControl.DesignTools
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Path)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Path
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/PartPreviewWindow/SelectedObjectPanel.cs b/PartPreviewWindow/SelectedObjectPanel.cs
index 800abd896..736a7e6aa 100644
--- a/PartPreviewWindow/SelectedObjectPanel.cs
+++ b/PartPreviewWindow/SelectedObjectPanel.cs
@@ -183,14 +183,21 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 			scene.SelectionChanged += (s, e) => removeButton.Enabled = scene.SelectedItem?.CanRemove == true;
 			toolbar.AddChild(removeButton);
 
-
 			// Add container used to host the current specialized editor for the selection
-			selectedObjectEditorColumn.AddChild(editorPanel = new FlowLayoutWidget(FlowDirection.TopToBottom)
+			var scrollableEditor = new ScrollableWidget(true)
+			{
+				HAnchor = HAnchor.Stretch,
+				VAnchor = VAnchor.Stretch
+			};
+			scrollableEditor.AddChild(editorPanel = new FlowLayoutWidget(FlowDirection.TopToBottom)
 			{
 				HAnchor = HAnchor.Stretch,
 				VAnchor = VAnchor.Fit,
 				Padding = new BorderDouble(top: 10)
 			});
+			scrollableEditor.ScrollArea.HAnchor = HAnchor.Stretch;
+
+			selectedObjectEditorColumn.AddChild(scrollableEditor);
 
 			inlineTitleEdit = new InlineTitleEdit("", theme, "Object Name");
 			inlineTitleEdit.TitleChanged += (s, e) =>
@@ -201,15 +208,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 				}
 			};
 
-			var selectedObjectEditorColumnBody = new GuiWidget()
-			{
-				HAnchor = HAnchor.Stretch,
-				VAnchor = VAnchor.Fit
-			};
-
-			selectedObjectEditorColumnBody.AddChild(selectedObjectEditorColumn);
-
-			selectedObjectEditorSection = new SectionWidget("Editor", selectedObjectEditorColumnBody, theme, serializationKey: UserSettingsKey.EditorPanelExpanded, defaultExpansion: true)
+			selectedObjectEditorSection = new SectionWidget("Editor", selectedObjectEditorColumn, theme, serializationKey: UserSettingsKey.EditorPanelExpanded, defaultExpansion: true, setContentVAnchor: false)
 			{
 				VAnchor = VAnchor.Fit,
 			};
diff --git a/PartPreviewWindow/View3D/Actions/CombineObject3D.cs b/PartPreviewWindow/View3D/Actions/CombineObject3D.cs
index 9311998dc..26b5aa192 100644
--- a/PartPreviewWindow/View3D/Actions/CombineObject3D.cs
+++ b/PartPreviewWindow/View3D/Actions/CombineObject3D.cs
@@ -50,9 +50,9 @@ namespace MatterHackers.MatterControl.PartPreviewWindow.View3D
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/PartPreviewWindow/View3D/Actions/IntersectionObject3D.cs b/PartPreviewWindow/View3D/Actions/IntersectionObject3D.cs
index 537b8788d..fb1685930 100644
--- a/PartPreviewWindow/View3D/Actions/IntersectionObject3D.cs
+++ b/PartPreviewWindow/View3D/Actions/IntersectionObject3D.cs
@@ -50,9 +50,9 @@ namespace MatterHackers.MatterControl.PartPreviewWindow.View3D
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/PartPreviewWindow/View3D/Actions/SubtractAndReplaceObject3D.cs b/PartPreviewWindow/View3D/Actions/SubtractAndReplaceObject3D.cs
index 4efb3b150..2ddd3a154 100644
--- a/PartPreviewWindow/View3D/Actions/SubtractAndReplaceObject3D.cs
+++ b/PartPreviewWindow/View3D/Actions/SubtractAndReplaceObject3D.cs
@@ -53,9 +53,9 @@ namespace MatterHackers.MatterControl.PartPreviewWindow.View3D
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/PartPreviewWindow/View3D/Actions/SubtractObject3D.cs b/PartPreviewWindow/View3D/Actions/SubtractObject3D.cs
index 002b392eb..273b5266f 100644
--- a/PartPreviewWindow/View3D/Actions/SubtractObject3D.cs
+++ b/PartPreviewWindow/View3D/Actions/SubtractObject3D.cs
@@ -110,9 +110,9 @@ namespace MatterHackers.MatterControl.PartPreviewWindow.View3D
 
 		public override void OnInvalidate(InvalidateArgs invalidateType)
 		{
-			if ((invalidateType.InvalidateType.HasFlag(InvalidateType.Content)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Matrix)
-				|| invalidateType.InvalidateType.HasFlag(InvalidateType.Mesh))
+			if ((invalidateType.InvalidateType == InvalidateType.Content
+				|| invalidateType.InvalidateType == InvalidateType.Matrix
+				|| invalidateType.InvalidateType == InvalidateType.Mesh)
 				&& invalidateType.Source != this
 				&& !RebuildSuspended)
 			{
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index fc25dd0e2..9b05c840e 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit fc25dd0e2047fff38307d0fc4b4121f524f4282c
+Subproject commit 9b05c840e4c3b32ae8e95d5d7c73da072430edc8