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Manage articulations in the Editors in Logic Pro for Mac
If articulations have been recorded along with notes and events in a region, an Articulation pop-up menu becomes available in the Piano Roll Editor.

You can also select all notes that use the same articulation and choose articulations via the shortcut menu. Finally, you can color notes by articulation as well. Other MIDI Editors, such as the Event List and Score Editor, also allow you to view and edit articulations. See Edit articulation IDs for note events, and Change note articulations in the Score Editor for more information on how to work with articulations in those editors.
Choose an articulation in the Piano Roll Editor
In Logic Pro, select one of the available articulations in the Articulation pop-up menu.