MIDI Editing : Using the Grabber Tools : Consolidating MIDI Notes
 
Consolidating MIDI Notes
The Consolidate command lets you combine two or more consecutive MIDI notes of the same pitch into a single MIDI note.
To consolidate MIDI notes:
1. Select the MIDI notes you want to consolidate.
2. Do one of the following:
*Choose Edit > Consolidate.
*Right-click the selected notes and choose Consolidate.
*Press Option+Shift+3 (Mac) or Alt+Shift+3 (Windows) to consolidate adjacent selected MIDI notes of the same pitch.