Menu-Only Custom Objects
Menu-only custom objects store menu options for populating menu fields in other custom objects. This lets you to use the same menu lists to populate menu fields in multiple custom objects.
In addition, because management of items in menu-only objects is handled from the Customizable Menus tree, it is simple to add, edit, or delete items in the menus whenever you need.
For example, if you were creating a product registration solution, you could create a menu-only object that lists locations where customers can purchase your products. You could then create another custom object that stores when the product was purchased, who purchased it, and where they purchased it. You could use the menu-only object to populate the menu field that tracks where the product was purchased.
Configuring menu-only custom objects is straightforward since all configuration is performed on the object designer Summary page. Ribbon buttons to access the Fields, Indices, Relationships, and Extra Options pages are disabled. You don’t need to configure relationships to menu-only objects since they are created automatically when you use the menu-only objects to populate menu fields in other custom objects.