Toggle Track Protect

Toggle the protected state of the selected tracks.

Protect tracks in Logic Pro — Apple Support

You can protect a track to prevent accidental changes. While a track is protected, you can’t record on the track, edit regions on the track, or create new regions on the track. If you want to edit the track, you can unprotect it, make the changes, and then protect the track again.

  Insert Silence Between Locators (Global)    ⌃⌘Z

Inserts “empty space” between the locators. Allows you to easily create gaps in a project so you can add new regions (MIDI or audio).

Add or remove gaps in a Logic Pro arrangement — Apple Support

Alternatively, you may want to insert some empty bars in the middle of a project, to create space for another chorus, verse, or bridge, for example. As with the previous example, all existing tempo changes and so on are moved accordingly (to the right by the number of inserted bars).

  Select And Operate using Transform User Preset 20

Process the MIDI events using program 20. Lots of program slots. Unlikely to ever need 30 user-defined programs. The built-in programs do a lot of the typical heavy lifting.

Logic Pro MIDI Transform window overview — Apple Support

The MIDI Transform window is a powerful tool for edits that would otherwise be impossible (or tedious). For example, imagine an orchestral project that has been sent to you for editing. The individual violin and viola parts were recorded with a different string library. Two hundred MIDI regions contain aftertouch information that introduces an unpleasant pitch modulation, and some sample layer switching artifacts when played with your string samples. After looking at this aftertouch information, you discover that only a small range of values is causing the problem. Your options: edit your sampler instruments, manually remove all aftertouch information (region by region, or globally, thus losing the performance benefits that the aftertouch information provides), or alter the problematic values in the MIDI Transform window.

  Select All Following of Same Track/Pitch   ⌃⇧F

Select all of the notes (same pitch) following the currently selected note. Select all of the regions (on the same/focused track) following the currently selected region.

The selection of regions on a track can seem inconsistent if you aren’t sure what the setting of

Toggle Select Regions on Track Selection ⌃⌥⇧⌘A

I used to have it set to select all the regions when selecting a track. This turns out to not be what I normally want. I have mapped the toggle to be “Hyper Select”.

Select regions in the Logic Pro Tracks area — Apple Support

Select regions meeting specific criteria

In Logic Pro, choose any of the following from the Tracks area Edit menu: