Right now, I have "wants", "must-haves" and "savings" category groups, and I budget my money accordingly, like 30/50/20.

What I'd like is to be able to set individual categories budget within a group and not do the math myself: simply set the category group budget, and then it would show me if I have put in too much for all the categories in the category, or how much is left until I reach group budget.

Does this make sense?