There is no reason the firmware update on the A10 couldn't allow the on-camera flash to adjust and control all of the groups ABCDEF not just ABCD. And while you are at it, there is no reason that groups D E or F need to ONLY be Manual. That is an artificial limitation that hinders our ability to create and shape light in an ever-fluctuating environment. These tools (small flashes) are made for event and documentary photographers. So stop putting limitations on them, arbitrarily.
Every Group should be available for Use as TTL or Manual and you should be able to turn any of them to TTL or to Manual at any time. The TTL/Manual hard switch on the side of the A10 should be a full TTL or Full Manual, but in the display and buttons of the A10 and the Connect Pro, you should be able to add the option to change each group to TTL or Manual on its own. Photographers who use TTL with 3 flashes, usually need TTL with 4 flashes, but just can't because Profoto decided that 3 was enough. It's not!!!
