Yes this would be good but until it is available.... I have used the Supplier Type and I have them set with Bank, Credit Card, BPAY and Online. I have reports memorised for each category and then I run each report when needed and pay bills by selecting each from the list and then make payment accordingly. I also have several different Supplier Remittances saved, only hassle is that I have to go into administrator mode to change the details on the email that sends the remittance, however this is not really painful when I am paying over 40 from each category each month. Well worth the effort and saves me heaps of time.
I change the email remittance for credit card payments because I advise the supplier to charge our credit card and the details are included in the attachment. Credit card details are added to remittance as a note.