Select And Operate using Transform User Preset 27

Select the MIDI events and transform them using preset 27. Lots of un-named programs.

Use MIDI transform sets in Logic Pro — Apple Support

Depending on your needs, it may be worthwhile to create your own transform sets. These can be configured and saved as part of a project. (Doing this in your template projects makes your transform sets available in all projects.) Your transform sets are shown at the bottom of the Presets pop-up menu.

  Select Same Subpositions   ⇧P

With an event selected pressing Shift-P will select all of the events that start at the same position in a bar. If there is only one event at that position the currently selected event is de-selected.

Very useful for editing notes.

Select events in the Logic Pro Event List — Apple Support

Same Subposition (or press Shift-P): Selects events that start at the same position within their respective bars.

  Nudge Region/Event Length Right by Beat

Make the selected event longer by one beat. One of the particular oddities of the Logic Pro documentation. The only mention of nudging by length is in reference to movies (soundtrack) and in the Score Editor.

Rather than creating a separate key command for this I would simply use the ‘Set Nudge Value to Beat ⌃⌥B’ and then use the ‘Nudge Region/Event Length Right by Nudge Value ⌥⇧→’ command.

Move notes in the Piano Roll Editor in Logic Pro — Apple Support

You can move selected notes in the Piano Roll Editor to change their time position. When you move notes, they move according to the current Snap value for the Piano Roll Editor.

  Event Channel =   9

Set the Event Channel number for the selected events to 9. This saves you from having to use the cursor to drag a value up or down. You can also change the Event Channel for the selected events by double-clicking the channel field (open for editing) and typing in the channel number 1..16 and pressing return.

Change event values in Logic Pro — Apple Support

You can change the event values shown in the Event List Value, Number, and Channel columns by using the mouse as a slider or with text input. You can not directly alter the event type in the Status column.

  Nudge Region/Event Position Left by 5 SMPTE Frames

Move the region or event 5 SMPTE frames earlier in the timeline. Warren Huart might say “forward” — make the sound happen sooner.

Move regions in the Logic Pro Tracks area — Apple Support

You can nudge regions (move them in small increments) left or right using key commands. To nudge regions, you first set the nudge value, then move selected regions by this value. Alternatively, you can nudge regions by a set value.