In Model – Functions Assignement menu item select throttle function driver (P2 in transmitter mode 1) and push 3D button – this way you get to the dialogue of choosing input control element. Here push F3 Rev. button, which completely inverts the sense of the control. Close the dialogue by pushing OK button. Functionality of the motor digital trim will be adequatly altered and there is no need of any other changes in the model setup.

 THR-Reverse1  THR-Reverse2