Servo powered skid steer

hello team, I have made the cross to AP from iNav. I have built a tracked simple skid steer rover and am powering the tracks with servos with 360 continual mod.
I have the radio connected and am a little stuck. i want to use one gimble to control forward and revers on one plane … say pitch and then skid steer on the other plane like roll. this would require mixing the channels.

i am brand new and taking baby steps. i would liek to get this working and learn on the rover before i change my flying fleet over …

thank you for any assistance

That’s a common RC control configuration often on the spring center stick. No mixing required. Even with Skid Steer vehicles few people configure for 2 stick tank steer.