Consolidate Non-stock Par Requisitions

We have noticed that our non-stock par requisitions are not consolidating onto a single purchase order. Confirmed that the ship to location for each par location is the same, the Consolidate with other Requisitions flag is checked on the requester defined on the par location. However when the requisitions are created after running the Par Replenishment process they are created with the consolidate flag = N. When PO Auto Source runs it creates a separate PO for each requisition/par location. Is there a way to consolidate par requisitions?

Thanks,

Nick