[Feature] - Undo on Flows

[b1scuit-thi3f]

Is your feature request related to a problem? Please describe.
Sometimes you accidentially duplication something you don't want, or maybe you move an object (or objects) and ruin your nice looking flow. It would be cool to be able to hit ctrl-z and using the conduct history undo the last action.

Describe the solution you'd like
Control-Z allows for undoing, maybe limited to 3-5 bits of history.

Additional context
It would have to be aware of each user's action, so that one doesn't undo someone else's work if they are in the same conduct.