a good article on Dashboard permissions in the vcops-custom UI
http://vmwaredevotee.com/2012/11/29/how-to-share-dashbaord-in-vcops/
If you don't see the "Share" link on the dashboard, it means you don't have permissions to share it. Logon as admin or whatever ID created the dashboard. In our environment, all dashboards are created with a local user account called "dashboard". This enables centralized control and ensures that one account has full access to all dashboards.