Yamaha DTXpress/DTXplorer/DTXtreme

Hi Guys-
Great source for tips and tricks on the dtxpress.  Have had mine 
about 3 months and use it every day without annoying anyone (except 
for me with my poor skills).  I initially created a few new kits with 
different snare sounds and volume, etc. adjustments.  Unfortunately, 
I am not like the majority of other users - my technical skills stink 
when it comes to 100% understanding of all these functions and MIDI.

I recall reading a post or two saying I can get two different sounds 
from the same pad.  Does that mean I can get a rim shot on the snare 
while retaining the snare sound?  Since these are single trigger pads 
I can't understand how that's possible.  Also, can I buy a Yamaha 
dual trigger pad and just plug it in my snare jack and then get the 
two sounds?  Last, I want to clamp a cowbell and wood block to the 
rack.  What hardware alternatives are there that fit and look like 
they belong there?

Sorry for rehashing some beginner topics.

Groovin Bill
Havin' Fun & Over 40