You can use the security feature to control user permissions on a custom dashboard.
Log on to Web Console.
Go to Reports.
The Reports page appears.
At the top of the page, click Custom Dashboard.
Beside the dashboard name, under Actions, click Security.
The Security dialog box appears.
In the box, enter a user or user group.
Click Permissions, and from the list, select the permissions you want to assign to the user or group:
Change Security Settings: Change the security settings for this custom dashboard.
Edit Custom Dashboards: Change the settings for this custom dashboard.
Delete Custom Dashboards: Delete this custom dashboard.
Execute Custom Dashboards: View this custom dashboard.