Processing : Event Operations : Flatten Performance

Flatten Performance
The Flatten Performance command in the Event Operations window “locks in” the current performance for selected notes, creating a new “restore to” state for the specified note attributes when using Restore Performance.
 
To flatten the performance:
1 With the Grabber or Selector tool, select the MIDI notes you want to flatten.
2 Choose Event > Event Operations > Flatten Performance to open the Flatten Performance page.
3 Select the note attributes to flatten. (For descriptions of these attributes, see Restore Performance Command).
4 Click Apply.