Reply to Using modifiers - help me get my head round this!

I'm building a midi controller at the moment and I've realised I'm going to have to double up on a lot of the controls as I'm running out of physical space on the controller. I'm trying to come up with a solution that will allow me to use 4 buttons to assign FX 1-4 to 2 channels. I'm planning on using a toggle switch which will be used to assign which channel I want to assign the FX buttons to.

For example: I push the switch left and the 4 effects buttons are now used to enable/disable the effects for channel A. I now push the switch to the right and the 4 effects buttons disable and enable effects for channel B.

I'm going to assign 2 midi CC's to both switch states. When the switch is to the left it will be as if C3 is constantly being held down. If I then move the switch to the right it will be as if D3 is constantly being held down (midi notes are just for example).

My question:

Does this mean that if I have 4 effects push buttons that are permanently hot wired to output, for example, E3, F3, G3 and A4 will I be able to make Traktor recognise which deck I'm trying to assign these effects to? Is there a way to create a modifier so that if Traktor is receiving both a C3 and an F3 at the same time it knows to assign Effect 2 to Deck A? Or if it receives a D3 and an A4 at the same time it knows to assign Effect 4 to Deck B?

Does that even make any sense?!