Apple Logic Express 9 - Manual (Page 669)

Regions split in this way allow you to create a new MIDI region for each note by using
the Region > Split/Demix > Demix by Event Channel menu option in the Arrange window.
Each region created from this process can then be assigned to a different track (and
channel), allowing different instruments to be assigned for each voice.
For more information on the Functions > Note Events > Assign Channels Based on Score
Split command, see
Using a Split Point .
Using Hyper Draw in the Piano Roll Editor
You can directly create and edit MIDI controller information in the Piano Roll Editor. These
types of edits are made easier when you can see the notes that will be affected.
To view and create controller events
1 Open a Hyper Draw display in the Piano Roll Editor by doing one of the following:
• Choose a View > Hyper Draw command.
• Click the Hyper Draw button at the lower-left corner of the Piano Roll Editor, then
choose a MIDI controller by clicking the arrow button to the left.
669 Chapter 23 Editing MIDI Events in the Piano Roll Editor