But once the coins are received by the destination address the transaction is closed. The OP is asking if a request for payment can remain open indefinitely.
To the OP, give us a scenario where this would be a useful option for a transaction?
There is really no "request for payment". All that feature does is shows a QR code containing information such as an address and amount that another wallet can use to create a transaction. There is nothing being opened or closed, other than the app itself.