1. Hold down [Ctrl] and [Alt] on the computer keyboard.
2. Drag the first Part and release it on top of the other Part.
The result of this depends on the Snap Setting and the Record Mode:
• Replace Mode will make the inserted Events replace the old Events in the destination Part.
Regardless of Record Mode, the destination Part will keep all its Parameters (Output, MIDI Channel and so on).
The start and end points of the two Parts don't have to match at all:
...new Parts are created, following the same rules as when creating Parts in other ways.
If the two Parts don’t exactly overlap...