axial capra dig on my controller
 

id like to use my sanwa zz sticks or my sanwa M17 wheel transmitter on my axial capra,
on the original axial transmitter 1 button is for dig off and 1 for dig on,
do they both have a different frequency or something as i'm unsure how to set up my controller to work the dig,

any help appreciated

It's more than likely just using the 3rd channel on the original radio.

Just assign the 3rd channel to a button or switch to operate the servo in an on/off format.

It's just two positions on a servo on the third channel. Just set up one set of buttons or rotary knob on your transmitter as the third channel, in the custom settings, and use that to operate the shifter servo.