…but can’t recall the fix. In the Key Editor, any time I manually move a MIDI note with the mouse, it results in two events: the note I just moved, as the as the note in the original position. Very annoying! I looked through Preferences but didn’t see anything relevant, or that rand a bell. I’ve had this before, I can never recall the fix… and I can’t imagine why this behaviour would be the default setting. Thanks for any help 