Servo function assignment problem in arduplane Quadplane

@devere @tridge @Rolf @iampete

Hello, I am working on the quad tilt rotor VTOL. There are total 6 motors, 4 tilt (1-4) and 2 booster motors (5,6) near the fuselage.

Servo 9,10,11,12: motor 1-4 (Dshot);
Servo 13, 14: 81 (boostthrottle) (motor 5-6 Dshot)

I am using Q_M_BOOST_SCALE as 0.5 to the booster motors.

The problem is in the servoX_function:81 (boostThrottle) is not available in arduplane 4.3.

The ServoX_function: 81 is available in copter firmware though.

If i am using Q_M_BOOST_SCALE for arduplane, how can i assign motor 5 and 6 as booster throttle in servo functions?

Another issue is, i have assigned servo 5,6,7,8 as tilt motor front left, tilt motor front right, tilt motor rear left, tilt motor rear right, respectively.

But when i change from Qstabilized to FBWA mode, there are no signals on this channels and rotors are not tilting.

If i assign servo 5,6,7,8 as tilt motors front and tilt motors rear, then i am receiving signals from these channels.

Help from someone would be highly appreciated.

Thanks
Dhruvil