Put in a quick pass at some help text.

PartPreviewWindow/ViewControls3D.cs

@@ -625,28 +625,12 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
 				new NamedAction() { Title = "----" },
 				new NamedAction()
 				{
-					Title = "Keyboard Shotcuts".Localize(),
+					Title = "Help...".Localize(),
 					Action = () =>
 					{
 						UiThread.RunOnIdle(() =>
 						{
-							List<(string keys, string actoin)> keyAction = new List<(string keys, string actoin)>(new (string, string)[] 
-							{
-								("shift z","Zoom in"),
-								("z","Zoom out"),
-								("← → ↑ ↓","Rotate"),
-								("shift ← → ↑ ↓","Pan"),
-								("f","Zoom to fit"),
-								("w","Zoom to window"),
-								("ctrl / ⌘ z","Undo"),
-								("ctrl / ⌘ y","Redo"),
-								("delete","Delete selection"),
-								("space bar","Clear selection"),
-								("esc","Cancel command"),
-								("enter","Accept command")});
-
-							// ("Keys","Action");
-							DialogWindow.Show<CopyGuestProfilesToUser>();
+							DialogWindow.Show<DesignSpaceHelp>();
 						});
 					}
 				}