hide DFF only on External supplier registration page

Summary:

We are able to disable DFF fields on external supplier registration page but fields are hidden on manage supplier registration request task for an internal request also.

our requirement is to hide DFF only for external suppliers and visible on all other pages which is not working. when approver edits supplier request from edit supplier registration link from notification , we want approver to view and edit DFF fields which is failing since we have hidden fields on external registration page.

Hiding DFF on external supplier reg page causing fields hiding on supplier registration request viewed by internal users and approvers also.