Select Members of Group 53

Selects the channels that are members of group 53.

Overview of groups in Logic Pro — Apple Support

You can also automate a group. This lets you easily set the change for parameters of a group of channel strips over the course of a project. For example, you may wish to group all of your guitar channel strips together and have all of their relative volumes change at the same time throughout your project. For more information on automation, see Overview of automation in Logic Pro.

I don’t think I appreciate the enormous numbers of tracks and channels that can be involved in a project. I might get 30 to 40, but quickly reduce my efforts by busing them in appropriate ways.

  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

  Halve Region/Cell/Event Length

Make the object one half the size previously.

Cut and paste regions in the Logic Pro Tracks area — Apple Support

When you cut a region in half, the region is cut at its center and the right half is discarded, leaving only the left half.