18.104.22.168 Standard menu components
A standard menu component can be used to group related menu commands that would otherwise be placed as direct children of the menu bar they populate. This offers several advantages.
Related menu items (such as
) are grouped with respect to their code definitions, as well as their physical location in an interface. This encourages a logical structure which makes for a good design.
Using standard menu components to group related items is particularly useful when re-arranging a menu system. Groups of items may be moved in one action, rather than moving each item individually.
Grouping items together using standard menu components adds a separator which improves the physical appearance of any menu.
in the button bar to add a standard menu component to the current interface. Menu components must be added as the children of a menu. Menu components are not visible in the interface skeleton until at least one item or submenu has been added, using the
Menu items added to a standard menu component appear as standard menu items in that component.
Common LispWorks User Guide (Unix version) - 5 Jul 2006