Artio Booking extra functionality - ability to block out availability from backend for all products

Hi, we require extra functionality to be added to the Artio Booking framework - the ability to block out availability from the Joomla backend for all published products. We are using Joomla 1.7 ARTIO Booking Version: 1.3.9 Themza 'Computer Store' Template I'd rather not post the URL to the site in project detail but can provide it in PM. However I will not reveal username/passwords until job commences. Please contact me if you have any other queries.