Is your feature request related to a problem? Please describe.
I was wondering if there was a way to undo or re-do drawings on your app? I noticed that CTRL Z doesn't work to undo shapes or lines that I draw in a section of a notebook; I have to manually erase by choosing the eraser, which has its uses but the option to undo an action would be pretty useful, imo.
Additional context
From a user email.