one of the things that has been frustrating me about garageband for weeks now is the inability to change the duration of the ‘drawn’ notes in the piano roll.
this is now solved! oy…
all of the documentation I found will tell you that the track editor grid menu in the upper right of the track view (see below) is the place to change the duration of drawn (i.e. command clicked) new notes.
this is false. in order to change note duration of newly drawn notes, you have to select the score view.
and change it with the insert menu there. this change will carry over to the piano roll when you switch back. for some reason, the piano roll does not show the insert menu… go figure.