Orchid's built-in menu generation intelligently connects site structure to site menus which adapt themselves to site content.See Also: Edit this page
Menus are typically defined by the Theme and by the Page, and it is common for both kinds of menus to appear on a single output Page's layout. Menus typically pull pages from the Index to dynamically generate the menu items, so all that is required to keep a menu up-to-date is to choose the appropriate menu item types.
It is common for plugins to define their own menu item types, especially ones that correspond directly to the Pages a Generator in the plugin creates. The exact methods of pulling indexed pages into a menu item are left up to the plugin, and may be as opinionated as showing the latest blog posts in a single category, or as generic as simply asking for a URL to link to.