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  Set Locators/Loop by Regions/Events/Marquee

Set the locators using the current selection.

Use the cycle area in Logic Pro — Apple Support

Set Locators by Regions/Events/Marquee: Sets the locators at the start and end points of the selected regions or events, or the marquee selection.

  Apply Buffer Template to Definition, channel increment

Quick action to help building MIDI studios in the MIDI Environment. Probably going to not actually use this.

Work with object groups — Logic Pro X

The Options > Apply Buffer Template to > Position and Size command combines both of the above functions.

  Select Members of Group 51

Selects all of the members of Group 51.

Edit group membership in Logic Pro — Apple Support

In Logic Pro, click the channel strip’s Group slot, then press and hold Shift while choosing a group from the pop-up menu.

  Unpack Take Cell to Existing Scenes ⌃⌥⌘U

I have no pithy comments.

Record to Live Loops cells in Logic Pro — Apple Support

You can record to an audio or MIDI cell, even while other cells are playing. The settings for audio signal flow, software instruments, and the metronome are the same as when you record regions in the Tracks area.

Record and edit takes in cells in Logic Pro — Apple Support

You can unpack a cell take folder to other cells, scenes, or tracks.

  Nudge Region/Event Length Right by 1/2 SMPTE Frame

Make the currently selected event or region longer by adding 1/2 of a SMPTE frame to the right side of the region.

Resize regions in Logic Pro — Apple Support

You can shorten both audio and MIDI regions so that only part of the region plays. You can lengthen MIDI regions to add silence to the beginning or end of the region. In addition, you can resize the common edge of two adjacent regions to control the transition between them and remove overlaps.