I supply a couple of Agencies/Clients with the same Images, and have to put their details etc in of itpc boxes which is different for each Agency, (phone numbers, address, etc,) is their a way as (I convert back to Adobe Bridge,to do this) where I can keep the Description and keywords to the Images, and just add the other info (Phone, Address, info) for that Client to the rest of the Images, with out having to copy it all in again.