I hope there is an undo menu button

[yoghurtdewdew]

I accidentally deleted a piece of content while editing another, but because it was behind the bottom input keys at that time. It's in editing mode.The keyboard bounces, and when I put it down the undo is gone, so I can't undo it, so I hope it to be in the menu. If there is an undo operation in the button, even if I don't have time to click Undo, I can find an undo button from the menu to undo the operation just now, that's safe and friendly.

[yoghurtdewdew]

I wish to add a button like this in this position.This is safer to prevent me from deleting things by mistake and not getting them back.