V-Drum Pads - Yamaha DTX Brain

I'm not a drummer but am setting up a kit for my son. I picked up a
DTX 10 which he used for a while and was recently given a V-Drum set
up without the TD-10. I've connected all the V-Drum heads to the
Yamaha brain. Now I'm trying to get everything to work correctly (get
dual trigger action, adjust sensitivity, get hight hat to work, etc).

I'm looking for advice on merging to Roland pads to the Yamaha sound
module.

Thank you

John