Yes please (like really pretty please with a cherry on top…)
…I’ve spent a LOT of time having to redo things which don’t quite work as expected in the layout designer, either through my error (for instance clicking the wrong “align” or “center” button) or because the layout designer isn’t quite doing what it’s supposed to (like when you resize things it sometimes gets janky).
Not having an undo is such a persistent and frustrating problem that I’ve pretty much given up making my layouts look ok and just use it to assign controls.
(Having said that I love GP - so thank you for all your ongoing efforts.)