Once a Menu File has been loaded the lower portion of the Control Panel shows all of the available menu pages. The list is dynamic and will expand or shrink as menus are added or deleted.
The menu pages are listed by their menu title followed in brakets by the parent menu page number and the page number of the listed menu page. Any menu page which is currently displayed on the screen is highlighted. Clicking on a menu page in the Menu List toggles the menu state, invisible to visible, visible to invisible.
The values following each menu page are useful when there are multiple instances of a given menu page and when a menu has been heavily modified by deleting and adding menu pages. The values allow each menu to be traced back to its parent menu (the menu page from which it was spawned).