Set Scissors Tool ⌥3⃣ — Logic Pro keyboard command of the day

  Set Scissors Tool ⌥3⃣

Selects the Scissors Tool for slicing things up.

Can be selected by typing ‘T’ (tool menu) then ‘I’ (scissors tool)

Split regions in Logic Pro — Apple Support

When selecting a cut point with the Scissors tool, you can move backward and forward in steps of one division. The grid is based on the Snap pop-up menu setting.