Yamaha DTXpress/DTXplorer/DTXtreme

I am trying to figure a few things out on my DTX ver. 2

All my pads and cymbals are dual zone(8 TP80S, 2 PCY80S, and padals etc..)

2 questions:

 1. Should the HH80A(Hi-Hat pedal)be plugged into a mono or stereo cable?

 2. I am able to use the rim shots(or the dual zone) on all my
TP80S's, but Ive had no luck with the PCY80S's. I am wanting to do a
fast-mute on the cymbal by grabbing the rim. Im not sure if its called
a choke,? But I think you guys know what im getting at. I cant any
reference in my DTX  owners manual. It does mention its possible in
the PCY80S owners pamphlet. But I am unable to figure it out on the
DTX. Any help would be great.