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

Hey gang,
I was just reading the FAQs, and I read something about the drum kits 
that worries me, but I'm not sure if I understood it correctly. Can 
you create your own custom drum kits on the Command Stations? On the 
MC-505, if I like the kick drum from one drum kit, and the snare from 
another, I can put them together in a custom kit, and save them to a 
user kit location. Is this possible with these units? It's really not 
a big deal if it isn't, if the drum sounds are as good as everyone 
says they are. I find that a bit of a strange limitation, though. 
Fab