Material SubSize Pricing and Price Optimisation

It would be great to be able to set an individual sheet price for each subsize material, as these are often not equal to the same price as the square meter price of the master material.

Further to this, it would be great to have an optimization method based on price, rather than wastage.

Combining these two features would allow MaxCut to show the best qty and size of each subsize to use for the cheapest result, rather than the least wastage. 
(sounds odd, but with some sheets it often works out this way)