You can add the following types of menu to your panels:
Launch: You can access almost all of the standard applications, commands, and configuration options from the Launch button. To add a Launch button to a panel, right-click on any vacant space on the panel, then choose Add to Panel -> Main Menu. You can add several Launch buttons to your panels.
Menu Bar: You can access almost
all of the standard applications and commands from the menus in the Menu Bar. The Menu Bar contains the Applications menu and the Actions menu. To add
a Menu Bar to a panel, right-click on any vacant
space on the panel, then choose Add to Panel -> Menu Bar. You can add several Menu Bar objects to your panels.
System menus: System menus contain the standard applications and tools that you can use in the Java Desktop System. The Applications menu contain system menus. To add a system menu to a panel, right-click on a launcher in the Applications menu, then choose Entire menu -> Add this as menu to panel.
Menus that you add to your panels are represented by an icon with an arrow. The arrow indicates that the icon represents a menu or drawer. Figure 2–2 shows how menus typically appear on panels.