If the Image View is activated, “Undo” 
and “Redo” 
in “Edit” of the menu bar are
usable. If the XML Editor is opened
in the background, all functions under this menu item are
enabled.
If the Image View is activated, “Undo” and “Redo” in “Edit” of the menu bar are
usable. If the XML Editor is opened
in the background, all functions under this menu item are
enabled.
