Pixhawk and JetCat

Hey guys…

I have a Pixhawk and 4 JetCat engines with V10 ECU’s.
For my setup, I need to use all 4 turbines and connecting them with Y-cables is not acceptable.
I would like to know how to copy the Throttle channel to the Aux 1, 2, 3, and 4.
Basically plugging one turbine ECU to AUX1, another turbine ECU to AUX 2, and so forth.

Does anybody know how to copy the throttle functionality to the AUX channels?

The Pixhawk is the genuine 3DR version with the latest Plane firmware installed.