Is there an Undo Button or Undo command when working in Design mode? For example, if you add a button to the screen move it to a different position, can you “undo” so that it returns to the the spot you moved it from.
There does not appear to be an “undo” function, unfortunately. I just tried it and did Ctrl+z as well as Edit > Undo, neither worked.
Your best bet may be to use the version history and revert to a recent version. Not the same, I know.