MRP Available stock vs By order

SUGGESTED

Internal constraints don't allow us to have a WOF of more than 5,000. If we have a SOF for 15,000 and 3 WOF's for 5,000 each, replanning wants us to increase the first WOF to 15,000 and cancel the other two WOF's in the same time bucket. Is there a way to get it to recognize the three WOF's = the one SOF?