Midi channel problem

[Robbert]

hi
i'm using sunlite with a bcf2000 midicontrol, works fine. the only problem is this:
when i select for instance midi channel 1 for the velocity of a dimmerswitch in sunlite, i have to assign midi channel 2 to the fader i want to use on my control. i can't select zero on my controller nor in sunlite so now i lose 1 midi channel because sunlite's first channel is 1 and not zero.
i am definitely not an advanced midi user so can anyone tell me what i'm doing wrong or how to fix this?

thanks,

Robbert