Restrict view and catalog creation from agreements only to the contract administrator.

Hello Team,
I am seeking guidance on implementing a business requirement related to our procurement process:

Current Setup:
We have a Descriptive Flexfield (DFF) on the agreement that captures the Procurement Contract Administrator.

Business Requirement:
PR releases (specifically, Catalog creation) should be restricted so that only the Procurement Contract Administrator identified in the DFF can perform this action.

Request for Support:
Could you advise on how we can achieve this functionality? Specifically, I am looking for a solution or configuration that ensures only the designated Procurement Contract Administrator is permitted to create PR releases from the catalog.

Your assistance in resolving this would be greatly appreciated.