
Undo and redo Mixer and plug-in adjustments in Logic Pro for Mac
Using the Mixer Undo and Redo commands and the Undo History, you can undo and redo adjustments that you make to channel strips and plug-ins in the Mixer. Undoing or Redoing Mixer and plug-in adjustments is exactly like undoing adjustments in other areas of Logic Pro. The main difference is in the Undo History, where you can choose to include or remove changes from the Mixer and plug-ins from the Undo History action list. If you want to undo changes you make in the Mixer and to plug-ins, make sure that you have the buttons for Include Parameter Changes From for both Mixer and Plug-in turned on.

There are also specific Mixer and plug-in undo commands in the Mixer > Edit menu:
Mixer Undo: Undo last Mixer Action.
Mixer Redo: Redo last Mixer Action.
Undo selected Channel Strips: Undo last changes, such as fader adjustments, to the selected channel strips.
Redo selected Channel Strips: Redo last changes, such as fader adjustments, to the selected channel strips.
Include Mixer Undo Steps in Project Undo History: Select to include Mixer and plug-in undo steps in the Project Undo History.
Delete Mixer Undo History: Deletes the Undo History for parameter changes in the Mixer.
To learn more about using Undo, Redo, and the Undo History window, see Undo and redo edits. To learn more about using undo and redo from the plug-in window header, see Undo a plug-in parameter change and Redo a plug-in parameter change.