How to Disconnect the WO to Outside Processing Order in Batch

Dears,

Client moved from the old system to JDE live, they created hundreds of work orders (1 single operation in routing) for outside operation. And ran R31410 to have the outside processing PO created and linked to WO.

Now they found the mistake most of these WO should not be created and would like to delete these WO from the system. I knew this can be done manually by canceling the OP from WO and deleting the routing and then WO header. Would be possible to do this by batch instead of done manually one by one? Thanks!

Regards,

John

Apps 9.2 TR 9.2.4.3