Restricting invoice match screen to show unmatched receipts

We are on R12 & wondering if there is any way to restrict the invoice match screen to only show receipts which have uninvoiced quantities or receipts which haven't already been matched as the form currently displays all receipts, even though they have already been matched on another invoice.  Is there a seeded way to do this, or has anyone customized to make this possible?  We make use of blanket PO's for raw materials which can have hundreds of receipts during the month against a particlar PO line on that release so we are forced to search through a large amount of records to