Hi Bachus
The Wersi (From OAS 7) has 8 markers which can be assigned to the style buttons, (Intro, Fill etc) the drawbars can also be assigned to the tracks, so you can have independent physical volume controls for each track if required.
The OAA has up to 18 parts, (At present) but I am not sure if it has been fully merged with the sequencer yet, (The extra buttons are on the touch screen) it’s certainly been merged with the style converter. (If it has not yet been implemented it will in the future)
Aren’t modern instruments wonderful?

Bill