"…Since the new A4 O.S. 1.1b Reference Manual does not cover nearly all of the AK functions, as expanded multi map with assignable sounds per key …
See, that’s the thing right there. I still don’t know the FACTS about the AK vs A4. I was under the impression that the multi-map feature is also available for the A4 when controlled by an external keyboard. So is it or is it not? Can you only do that on the AK? Or is the difference is only about the AK having a dedicated multi-map button that makes short cut?
Edit: Never mind. I just checked the A4 new manual (updated to OS 1.1b) from page 48 and on, and multi map is also on the A4. So no. Multi map isn’t a special feature of the AK.