Undo ⌘Z – Logic Pro keyboard command of the day

  Undo    ⌘Z

Undoes the most recent action. The addition of Plug-in and Mixer undo is fantastic. Almost all supported control surfaces have an undo button.

Undo and redo edits in Logic Pro – Apple Support

You can undo virtually any edit, including moves, deletions, renaming, and parameter changes; and the creation of new events, regions, channel strips, and more.

 

There are a lot of undo things to consider.

- Global Commands
Plug-in Undo
Mixer Undo

- Various Windows
Undo ⌘Z
Undo History… ⌥⌘Z
Delete Undo History

- Main Window Tracks and Various Editors
Undo Quantization ⌥⌘Q

- Mixer
Mixer Undo for selected Channel Strips