Easy solution. you have to not think about it too hard. on the A2 connect F2 to pitch or tilt on zenmuse, F3 to pan on zenmuse, f4 to mode on zenmuse. Now go to a2 assistant and DISABLE gimbal control. on futaba receiver map LS to an aux (ch.11), RS to vpp(ch.12), SG to an aux. (ch.10) now go back to A2 assistant and map them into the A2. LS (Pan) will be ch.11, RS (Tilt or pitch) will be ch.12, SG (zenmuse mode) will be ch.10. You HAVE to DISABLE gimbal control in the A2 assistant to free up F2 & F3. Once done you will have full control of zenmuse from the same receiver. Well at least all the control you will need. Not enough channels on A2 to enable shutter and the other remote functions on zenmuse. FYI this is my setup on my Futaba T8fg Super.