Need help with using gentwire remote record feature

[Dave King]

I fly my scarlet and want to use a switch on my red to start/stop recording in flight. The red REMOTE doesn't have a very good range to do this effectively so I bought this unit. http://www.gentles.ltd.uk/gentwire/red.htm
I have it hooked up and wired correctly as the switch on my radio is engaging the red light on the gentwire unit however the camera is not recording. The companies directions in regards to the red scarlet are vague at best.
I have the cable plugged into the sync connector on the red and I thought I had the settings right by looking at the red manual but I must be missing something.

Here's the settings I have:

GPIO sync - Pro I/O GPI> PRO I/O
GPI A High - Record start
GPI A low - Record Stop
GPI B high - Record Start
GPI B low - Record stop

Keys>Key mapping>advanced
Key source : Pro I/O GPI
User Key: Pro I/O GPI high
Key action: Record start

 

[Dave King]

Figured out the issue. I needed to go into the Brain GPI.