How to setup differential thrust for conventional aircraft

Pixhawk
1

@LorenzMeier
@Andreas Antener
I am building a twin motor conventional aircraft (SonicModell Binary), and like to set up differential thrust.
I don’t find such frame type, nor there are any RC channels in the QGC that will allow me to set up differential thrust. Can you point me towards some parameters that would allow differential thrust?

Thanks,