Right. So it's best to put in 99999 for length just to be safe, and that your playing doesn't get cut off at the end. And fairly easy to open up piano roll to see where the last note played is (ie: 1452) and just set length to that after. Cubase and others you don't need to worry about that I'm sure. But then again, I don't think you get the Pattern ability either like you do in OP.
Still a bit confused how Rich will override this for OP8? From my understanding recording in Song Mode will default to A1. Which is good if you load up a piano, and want to record playing it right away.
But if one wants 'another take' on A2 - that might be the tricky part?
Rich implied it will constanly be on A1, so after recording one would have to copy/paste that 'take' to A2. And recording again in Song will overwrite everything on A1. Or maybe I misunderstood him?
So either way, today and next year - OP's always going to be just that little bit 'different'.