Dual Midifighter Mapping Request

Hi guys,

I'm using a MF Beatmaher alongside a MF Classic but I'm having difficulty mapping them how I'd like.

Currently if both MF's are set to focus they follow each other about so both controllers control the same Deck which totally defeats the object. What I'm looking for is a mapping that offsets the two controllers so when you shift the focus they effectively flip decks, ie;

Pro= Deck A
Classic=Deck B

*Pro=shift/sync* (focus shift)

Pro= Deck B
Classic= Deck A


I hope this makes sense.
Thanks for you support.