Savings Goals, buckets, sinking fund

Can we please get some sort of bucketing system and/or sinking fund? For example, I spend ~$150 on car gas and routine maintenance each month (on avg), but I want to build in an extra $50/mo into that budget where the money is siphoned off into a car fund to pay for new tires, extensive maintenance, etc.

This would make Copilot a top tier budgeting app (arguably more than a budgeting app).