You can add buttons to your panels to provide quick access to common functions.
The Log Out button begins the process to log out of a GNOME session.
To add a Log Out button to a panel, right-click on any vacant space on the panel. Choose Add to Panel->Button->Log Out. To log out of your session or shut down your system, click on the Log Out button.
The Lock button locks your screen and activates your screensaver. To access your session again, you must enter your password. To lock your screen correctly, you must have a screensaver enabled.
To add a Lock button to a panel, right-click on any vacant space on the panel. Choose Add to Panel->Button->Lock.
Right-click on the Lock button to open a menu of screensaver-related commands. Table 4.2 describes the commands that are available from the menu.
Table 4.2. Lock Screen Menu Items
Menu Item | Function |
|---|---|
Activate Screensaver | Activates the screensaver immediately, but does not lock the screen. |
Lock Screen | Locks the screen immediately. This command performs the same function as when you click on the Lock button. |
Kill Screensaver Daemon | Terminates the screensaver process. After you terminate the screensaver process, you cannot lock your screen. |
Restart Screensaver Daemon | Terminates and restarts the screensaver process. Use this command after you change your password. When you restart the screensaver process, use your new password with the screensaver. |
Properties | Displays an XScreenSaver dialog that you can use to configure the screensaver. |

You can use the Screenshot button to take a screenshot of your desktop.
To add a Screenshot button to a panel, right-click on any vacant space on the panel. Choose Add to Panel->Button->Screenshot. To take a screenshot of your desktop, click on the Screenshot button.

You can use the Search button to open the Search Tool.
To add a Search button to a panel, right-click on any vacant space on the panel. Choose Add to Panel->Button->Search. To open the Search Tool, click on the Search button.
For more information on the Search Tool, see the Search Tool Manual.