Graupner MZ-12 GR-18 Gimbal Control

[Mikeinreno]

I built a 250 quad and use the Graupner MZ-12 with HoTT GR-18. Can I program the DV Knob/Pot on the MZ-12 to control a camera gimbal (tilt)? I have seen others use a servo tester control but it would be nice to use DV knob on transmitter. If so, where would i plug in on GR-18?

Secondly, how would I bind to a toy quadcopter (indoor, small) from my MZ-12? Can I bind to more than one copter with losing the bind to my GR-18?

Thank you for your time.