Right now if I set a category to rollover to the next month, it does this even if the category is overspent. If I spend more than available in a rollover category, the category will be negative in the next month. Instead I'd like to be able to set different behavior for positive or negative balances. Specifically, I want to set positive balances to rollover to the category (for things like sinking funds), but negative balances to rollover to the general pool (to reflect I overspent and have less money to budget). This will bring it more in line with apps like YNAB or Actual.