You can act for another user, if you have been authorized to do so. For more information, see "About Acting for Other Users."
To act as another user:
In the global header, click Signed In As username, then select Act As.
The "Act As dialog" displays.
Select a user's ID from the list or enter the ID in the box (if available), and click OK.
The user's default dashboard is displayed. From this dashboard you can view or modify content, depending upon the access type (full or restricted) that you were granted by the administrator.
To return to your account, display the Act As dialog, click Stop, then click OK.