Generating a Pay Now link from an Order

Looking at using the MYOB Credit card and BPay portal. Can I generate the Pay Now link when the transaction is still an order? Even if a client needs to pay a deposit it would be handy to generate the payment link  before we convert to invoice. We want to keep an order as an order until its paid and then we go into production once paid. I can use another payment portal but it woudl be nice if it was flexible enough to use MYOB for prepayments.