Cloning creates a copy of the custom dashboard that you can then edit. You can clone your own custom dashboard or that of another user.
To clone a dashboard:
From the main menu, select Dashboards > Custom.
Click at the end of the row for the dashboard you wish to clone, and select Clone. The name of the new dashboard defaults to the name of the cloned dashboard with a timestamp appended.
(Optional) In the Clone Dashboard dialog, change the suggested name of the dashboard.