Additional Search Fields in Carry Out Sourcing

Hi,

I can see std fields while searching requisition in the Purchaser's worklist (Carry out sourcing)

Example: Requester,P Org, Delivery date, Account assignment Cat etc

Can it be possible to include more fields in it like Filter by Plant or Approval date.

I know through the webdyn pro component:/SAPSRM/WDC_DO_SOCO_GAF_1, we can enable or disable visibility.

But what is the possibility of adding more search fields to it.

Any help please..

Regards

IS