Undo/Redostack by User Toolbars quirk

I can call the Undo and Redostack from the User Toolbars when there is no undo or redo available. This is something that is not possible with the toolbar at the top.

Additionally to that, the Undo- or Redostack hides the Undo and Redo Buttons at the top bar. It is not directly closeable or moveable. To close it you need to perform a undo or redo from the list it seems. Which is empty here. And it misses a drag area.

Mh, the missing close feature for the stack window would be another quirk. You may decide that you don`t want to undo or redo anything. By coincindence i found out that the undo or redostack vanishes when you enter the top menu. Others may not be this lucky.

fixed.