Time signatures determine the number of Tracks area and the time-based editors (including the Audio Track Editor, Piano Roll Editor, and Step Editor). Time signature changes do not affect the playback of audio or MIDI Show and hide global tracks in Logic Pro.
Note: The Signature track must be visible—and must not be protected—in order to select and copy signatures.
In Logic Pro, do one of the following:
Click the List Editors button Apple Books | PDF