Is there a way to reverse control inputs in APM Planner 2.0?

I have a small quad I am building and I think I am almost ready to give it a test flight except for one small problem. Two of the four flight controls are reversed. My Spektrum DX5e radio has switches to reverse them, however one of the switches (rudder) is broken and won’t reverse. I don’t suppose this can be done using Planner?

Thanks,

Wayne

APM Planner 2.0.14 running on Ubuntu Linux 14.04.1. Quad is using a Pixhawk clone (HKPilot32) flight controller, a PPM encoder, and an OrangeRX 6-channel Park Receiver.

Yes. Full params list scroll down to RC#_REV

WooHoo! Kool.

Thanks,

Wayne