You would have to do flags for each RKM1, the commands are for the zone to select preset a, b, c etc. This would mean 8 keypads X the number of stations you need to be able to scroll through. Thats a ton of macros and flags, I did think about it.
Even on the touch screens, I give the client buttons for a few favorite stations, but the preset +/- do not go up and down from the favorite station selected, they go up and down from the last station you saw when you last used preset +/- buttons.