Currently, in Catalog View, Users can only see the entities that they have access to. A window shopping feature can be added where full list of entities is made visible to all the users with only access to Metadata details. Users can then add the desired entities to shopping cart and check out. Approval flows can be triggered to Data set Owners and once approved the entity to be added to the users Catalog and user can publish the same. This would be great improvement for Users to discover and Publish entities in the same portal