Personally, I use step record to change the notes in a chord. It's somewhat time consuming, but not quite as confusing as using the note editor in the sequencer. I have never used Punch Record and maybe someone at the East Coast Jam will be willing to show me the procedure. Try using the sequencer editor on a song where you've used right 2 in one of the panel memories, and you'll see just how confusing these editors can get.