The display of hierarchic menus should be formatted so that options that actually accomplish control entries can be distinguished from options, which merely branch to other menu frames.
Additional Information:
In some applications, it may prove efficient to design "hybrid" menus which display one branch of the menu hierarchy elaborated to include all of its control options, while other branches are simply indicated by summary labels. In such a hybrid menu, it will help orient users if options that accomplish control actions are highlighted in some way to distinguish them from options that will result in display of other frames of the hierarchic menu.