[Feature Request] Better handling of deposits

I find my current work flow for deposits a tad confusing for the customer.
I would like to see an option where I create a quote, toggle deposit required and put 50% in there, client gets quote, approves and is brought to a payment page to pay the deposit. Then on my end I get an invoice with a deposit on it.
Currently I just have convert off, and I manually convert to invoice and communicate to the client to put a deposit down.
I could turn it on to auto convert but then they still have to know they are only required to pay 50% or they may pay it in full which closes out the invoice and that isn't good either since things likely will change.
Maybe there is a better way but I think adding the option I propose would help.