Welcome! In the Tiller Labs Add-on there’s a solution called Category Tracker that should work with the envelope budget. Docs: Category Tracker
But if you’re just getting started, I’d recommend the Savings Budget instead of the Envelope Budget. The link below gives a more detailed explanation, and compares it to the Envelope Budget. Basically, the Savings Budget is the newer template for envelope budgeting. It works with Tiller’s Foundation template and is therefore easier to install, works with more of the add-on sheets, and is still being actively supported by the Tiller team. Let me know if you have any other questions! I used the Envelope Budget for years, but I just switched to the Savings Budget last month.