Down payments not cleared in MIRO in SAP_APPL 617

Hello:

I have gone through various threads posted on SCN but could not find the answer i am looking for . We are on EHP7 and using down payment functionality using ME2DP and then clearing through MIRO. In MIRO i see two documents have been created one for invoice and other is for the down payment credit line with a debit going to the same vendor, its ok but when i see the vendor ledger i found them standing open there, the question here is if i still have to use F-44 of F-54 for clearing these open items then what is the use of Down payment clearing push button in MIRO ? Can someone shed light on it .

Thanks