Select Previous Region/Cell/Event or Move Marquee End (or Marquee Point) to Previous Transient ← — Logic Pro keyboard command of the day

  Select Previous Region/Cell/Event or Move Marquee End (or Marquee Point) to Previous Transient    ←

The classic left arrow. Select the previous “thing”. This is one of the highly overloaded key command — five more commands that take higher priority depending on context.

I wonder why they simply didn’t define it as multiple commands — the Marquee descriptions can be confusing.

Select regions in the Logic Pro Tracks area — Apple Support

To perform some edits on regions, you must first select the regions. You can select one or multiple regions, select regions on different tracks, and quickly select muted regions, overlapped regions, or regions meeting other criteria. Selected regions appear brighter in the Tracks area than unselected regions.

Select parts of regions in the Logic Pro Tracks area — Apple Support

Marquee tool: Use to select and edit region parts by dragging across them. The Marquee tool looks like a crosshair.

Previous Part Box Symbol — Logic Pro keyboard command of the day

  Previous Part Box Symbol

Selects the previous (to the left) symbol in the Part Box. Simple way to switch symbols without having to drag the mouse to the box and click.

Logic Pro part box overview — Apple Support

When Show Advanced Tools is selected in the Advanced preferences pane, you can add notes and other symbols from the Part box in the inspector. The Part box contains a complete collection of score symbols, arranged in groups. You can control which symbols are displayed in the Part box, reorder symbol groups, and open the Part box as a separate, floating window.