Pinogy POS Enhancement Requests

I have a deal that is for any five products for $12, but the bundle option is using individual prices and I need the price to just be set to $12 for the whole bundle, rather than individual items price changed to get to $12. For example, reducing the items to $2.40 to equal $12 lowers the price of items that are $2.29. So I need the ability to have a mix and match option that simply defaults to one total price for all items in that bundle.