Elektron Musical Instruments

hello all, 

please excuse my minimal knowledge of midi, but i'm trying to find a 
way to assign individual tracks (BD, SD, etc) on my MD to certain 
midi channels so that i can control patches assigned to that channel 
on my nord modular... problem is i can't seem to figure out how to 
set this up in the MD or find anything in the manual that touches on 
this subject or makes sense to me. closest thing i can find is maybe 
setting up something the midi map editor... am i on the right track? 
is this even possible to do on the MD?

i remember using the dr-202 drum machine and i was able to assign 
*just* the bass track to a particular midi channel to achieve this 
effect.

anyways, 
thanks in advance
k