I have situations where we would sell a bike to a customer and need to special order something like a rack. After spending time on the phone with support, there isn't an easy way to sell a customer a $1000 bicycle and take a deposit for a $50 rack at the same time. We discussed workarounds, but this isn't a unique scenario and it should be straightforward to be able to charge the customer $1050 in a single swipe and have $1000 go to purchase the bike and $50 sit on the account as a deposit or account balance.