2 positions is more than likely possible, 5 might be pushing it.
I don't think it will be a toggle switch, it will need to be activated by the V2 unit.
We currently have LB7 & LLY custom OS's that have been converted to switch from the V2 unit so no switch is needed, now we have that concept done on those ECM's it's a matter of porting that over to the LBZ / LMM which as the old saying goes, easier said than done
Cheers,
Ross