Finance models that select a rate depending on the FEE Type for that Unit

It would be really great if we could have one finance model per qualification, that could have different rates depending on the FEE Type selected for the Unit / Qualification.

Instead of having once finance model for each Fee Type for each Qualification.

eg. 

Cert II Business Finance Model

Non - concession: $7/hr

Concession: $3/hr

Fee - Exempt: $0/Hr