Yes, I know this is not the answer.

FLIP

  • Page & Layer gallery > make all Layers/Objects visible + make all Layers/Objects editable
  • Selector Tool > Select All
  • Flip horizontally + Flip vertically
  • Page & Layer gallery > revert Layers/Objects selections

--Normal Xara Activity
(FLIP)

I could write an AutoHotKey script so it becomes a single keypress.

Acorn