Yeah, one could see it that way. I love to freely make patterns on the machines, then try to gather them afterwards.
A screen interface would be awesome. Currently looking into using the Lemur app for this. Just need a way to connect a MIDI interface (a camera connection kit is on its way).
As a side note since you seem to look for every possible solution, I’m now using a morningstar mc6 for controlling everything.
it sends clocks, pc etc…what is interesting is that you have 32 messages per stomp, 6 stomps per page and two page per bank on 30 banks. Press, long press, double tap can trigger different messages,pc etc… Since you are looking for something manual…( Footual ? )
It replaced my bomebox and my sipario which I used as a mini daw hence its quite powerfull arrangement possibilities. Since I don’t have an AK anymore its splits and routing options became a bit overkill though…
If it were me, I would simply program the Program Change messages into Parts on the OT. When you switch pattern to a pattern that is linked to a new Part, the Program Change messages are sent. There would be no need for any external box.
There may be reasons why this would not fit your needs.
LK for iPad (and iPhone!) might be what you’re after. It’s like Ableton’s clip view, for midi (and actually for Ableton, which is what it was originally made to do).