Emu XL-7 & MP-7 User's Group

Does anyone know a simple way to assign a clik trak to output 
from one of the sub out puts only (to send to a drummer)

Also, is there an easy way to change existing preset sounds once a 
song file has been structured. I use E-loader/Cubase for editing 
tracks but once I load them back on to the sequencer, it refuses to 
let me change the preset sound. Is it possible to change preset sounds
from within CUBASE VST.