text is a tough way to do audio — ⇧ SHIFT — ⌃ CONTROL — ⌥ OPTION — ⌘ COMMAND
I believe the workflow is to
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.
- Tools Menu
The category of commands that control the tools — mouse clicks and/or trackpad clicks.
Common Logic Pro tools — Apple Support
The following section describes common tools available in the Tracks area and in other working areas.
Tool key commands in Logic Pro — Apple Support
The following table reflects default Tool key commands included in the U.S. factory preset.
Main Window Tracks and Various Editors
I have been skipping the command grouping entries in the command list. There is some utility in knowing what they are. The command headings appear in pop-up menus in places like the Key Commands window, and in the “learn” windows.
I have tried to indicate groupings with keywords, but missed on the first hundred or so posts. This entry gets ‘Main Window Tracks’ and ‘Various Editors’.
Eventually a keyword search will help create a better index into the commands and documentation.
Main Window Tracks and Various Editors key commands in Logic Pro — Apple Support
The following table reflects default key commands included in the U.S. factory preset.