Hotkey for Undo and Redo?

Hello! I have tried using CTRL + Z or Y for undo and redo in build mode and I just get zoom in. I have also tried the following:

command + z, shift + z, option + z, fn + z and they all zoom in. Help? I am recording a speed build and would like to not have to hit the undo/redo icon at the top of the screen all the time.

Oh! never mind. I got it. The issue is it won't work with a mod that I have to use tab view to get rid of the panel to record.