Bc2000 (for the BCF2000 & BCR2000)

You don't need to use the other views if you save the main mixer to differant views then swap from there. Say you have tracks with a normal drum kit, a bass plus keys, and 2 guitars.  In mixer one click the hide channels for the bass keys and guitars. Then save the view as "drums". Next click  to "show all set hidden" (something like that) and hide the drum tracks unhide the bass and keys, click hide tracks set to hidden and save as "bass". Do the same for the guitars view. Now assign a button to toggle the mixer views and you should be good. I found the Mackie mode does this for it's view key it uses the saved views like "view 1" , "View 2" etc.