Separating Lift rotors from Tilt rotors?

Hello,

I am considering building an airframe similar to the SKYF: https://youtu.be/CZ8ZFFjOzII?t=45 (They use a gas motor spinning really large lift props, and then use small electric props to steer. I was hoping to do something similar with 30" props on 9235 motors for lift, with small standard 2212 motors for tilt.)

Is it possible without recompiling to make a mixer definition that separates out tilt commands (Roll, Pitch, Yaw) from Lift commands (Throttle)?

Thanks
Caitlyn

Yes, it is possible I think.