diff --git a/PartPreviewWindow/SelectedObjectPanel.cs b/PartPreviewWindow/SelectedObjectPanel.cs
index eb3c9a1d9..cecde04eb 100644
--- a/PartPreviewWindow/SelectedObjectPanel.cs
+++ b/PartPreviewWindow/SelectedObjectPanel.cs
@@ -86,10 +86,11 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 
 			this.AddChild(scrollable);
 
-			var editorColumn = new FlowLayoutWidget(FlowDirection.TopToBottom)
+			var editorColumn = new BottomResizeContainer(theme)
 			{
 				HAnchor = HAnchor.Stretch,
-				VAnchor = VAnchor.Fit
+				VAnchor = VAnchor.Absolute,
+				Height = 250    //////////////////////// Load persisted user value
 			};
 
 			var toolbar = new Toolbar(theme)
@@ -199,6 +200,9 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 			if (editorSection.Children.FirstOrDefault() is ExpandCheckboxButton checkbox)
 			{
 				checkbox.ReplaceChild(checkbox.Children[1], inlineTitleEdit);
+
+				// Override default constructor behavior - force back to Absolute after add
+				editorSection.ContentPanel.VAnchor = VAnchor.Absolute;
 			}
 
 			this.ContentPanel.AddChild(editorSection);
diff --git a/PartPreviewWindow/View3D/View3DWidget.cs b/PartPreviewWindow/View3D/View3DWidget.cs
index 21e77935b..657d8e9ea 100644
--- a/PartPreviewWindow/View3D/View3DWidget.cs
+++ b/PartPreviewWindow/View3D/View3DWidget.cs
@@ -184,9 +184,9 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 			treeSection = new BottomResizeContainer(theme)
 			{
 				HAnchor = HAnchor.Stretch,
-				VAnchor = VAnchor.Absolute
+				VAnchor = VAnchor.Absolute,
+				Height = 250    //////////////////////// Load persisted user value
 			};
-			treeSection.Height = 250;    //////////////////////// Load persisted user value
 			modelViewSidePanel.AddChild(treeSection);
 
 			// add the tree view