General MIDI 2 drum kits...how to use?

Grundberg
Have you looked at the Cakewalk Sound Center/Studio Drums that are included in your MC6. They're a much better sounding drum kit than the GM kits---take a look at them-----Keith

scook
........The instrument popup is also available with a click in the channel just to the right of the fader. On my install, it takes a very slow and deliberate click to bring up the menu.

Wow! Thank you. I would've never found this.
 
However, could you also explain the part quoted above? It's a little foggy.

Grundberg
In my TTS track, I set the Bank parameters and designated Patch # as instructed, but I'm still getting the instrument rather than drum kit set. 

How, exactly, are you setting bank and patch? Are you typing in values from the GM2 table? Don't do that.
The patch numbers in TTS-1 are off by 1, because TTS-1 counts patches from 0, not 1. 
For instance kit #41 in the table (Brush Kit) is actually # 40 in TTS-1.
The banks do correspond with the table.
Bank 0 in the Table is the Preset Normal 0 bank for TTS-1.
Use the drop down arrow in the bank/patch boxes.
For Bank, select the 15360-Preset Rhythm bank to get drums.
For your patch, select only the named patches.
Patches represented by numbers are empty. If you select one of these, TTS-1 does not see that it has anything to change to, so it continues to play the last valid instrument patch selected.
 
Setting bank/patch in the TTS-1 MIDI track also automatically maps the drums in your PRV, so you see drum names instead of notes.
TTS-1 drums aren't the glossiest around, but with a little TLC, you can get them to sound surprisingly good.
I'm partial to the Power Set.
hth.