The item is followed by an optional mnemonic or accelerator or both, and then by a window manager function. The function is the action that the window manager takes when that menu item is selected.
Some functions require an argument.
Not all applications require each one of these default functions. For example, if you have a real-time application, it should never be iconified. The Motif Window Manager allows you to specify a Window menu for each application you are using. MailWindowMenu Remember that you need to restart mwm for your version of the menu to appear.