Modifiers

Modifiers keeps the choices that go with what you sell: the doneness of the meat, an extra of cheese, the size, «no onion». Each group says how many options must be chosen and whether one can be repeated; each option carries its supplement, more, less or free, and can come chosen by default. One group serves many products and whole categories, and the till asks for it, charges the supplement at the catalog price and sends it to the kitchen with its own name.