Record tempo changes in Logic Pro
All tempo changes made when Logic Pro is in record mode are stored as tempo change events on the Tempo track. You can record tempo changes with an external MIDI controller, the Environment tempo fader, or external synchronization signals. You can edit recorded tempo change events in the Tempo track or using one of the tempo editors—Tempo List, Tempo Operations window, Tempo Interpreter window, or tempo fader.
Turn on tempo change recording
Open the Recording project settings by doing one of the following:
Choose File > Project Settings > Recording, or use the Open Recording Project Settings key command, Option-Asterisk (*).
Control-click the Record button in the control bar, then choose Recording Settings from the pop-up menu.
Select the “Allow tempo change recording” checkbox.