customizations in 57f4 form

Hi,

working in  R12 and getting some material tracking problem during creation of 57f4 (Outside process).

Current scenario is as follows

create one  item as  subassembly and one Outside process (OSP) item

1)create Bill of material (BOM) for subassembly

2)create BOM for OSP Item with operation sequence 10 & 20 and attached resource for OSP item as type PO move.

user release job for osp item and get requisition after that create po or blanket release .

and go to India localization form and create 57f4 by pressing approve57f4 button .

in this process system not check the outgoing material.

now my requirement is