Allow an expenditure category to be set for transfers. It's possible to enter data this way, but the transfer function overrides the category. This is important for budgeting. My use case is an IRA contribution. That is both a transfer (checking to brokerage) and a budget category (IRA Contribution), since it's going from liquid to illiquid. Also important for tracking physical assets, e.g., transferring X dollars from checking into the asset value of a car on purchase, but also tracking the payment (and loss of liquid cash) in the budget.