Yamaha DTXpress/DTXplorer/DTXtreme

I have another (maybe dumb) question about the DTX-2 before I rush 
out and buy it.  Is it possible to make one of the pads into a splash 
(or does the module come with a splash effect pre-programmed)?  If I 
need to make one on my own, how hard is it?  I've only had a chance 
to fool around with the pre-programmed kits at the music shop so far, 
and since I'm currently living overseas, there's something of a 
language barrier which excludes detailed conversation between myself 
and the clerks ;)  Heck, I may not even get an English manual!
 
Thanks again...