How to add the oaf changes to only few PO responsibility

Hi ,

We have a requirement to add the Supplier Number,DUNS number and Alternate Vendor Name to the below Global PO responsibility such as Global PO Buyer, Global PO Inquiry, Global PO Administrator, Global PO Advanced user .

Even after adding those changes through Vo extension, how to apply OAF Personalization to Multiple Responsibilities.

Because the changes we are doing from the responsibilities has the same page structure.