@Andreas_Hegenberg I would find two actions useful analogous to “save current mouse position” and “ restore saved mouse position”
But for windows. So, I save size and position of a window, change both, and then return to the same size and position of the window.
Is this perhaps already possible somehow?
currently it's only possible for all of your windows but not for specific ones. (Via the Save Current Window Layout & Restore Last Saved Window Layout actions).
I'll add an action to just save/restore the current window size
My man, thank you very much 
.. and position?
sure that as well 
I'll take the liberty of coming back to this ... when you have some time. 