Logic Pro X Mark takes while recording
If you know you’ve recorded a good take and want to mark it so that you can find it again later, you can do so while you’re still recording.
Marking a take while recording is only possible when Show Advanced Tools is selected in the Advanced preferences pane.
Mark a take while recording
Use the Select Previous Section for Realtime Comping key command.
This command places a tag in the current take, at the position the key command was used. All audio that precedes the use of the key command is tagged as a good take, and will be used in the final comp.