Appearance Menu Admin
To get started, go to Appearance > Menus from your WordPress admin screen.
- Select a menu to edit or click the create a new menu link at the top
- To enable custom post type categories, click Screen Options at the top-right of this screen and check off the category sections to enable.
- To create submenus, drag the link up under its parent and shift it to the right. See below for details
Creating Sub-Menus or Drop-downs
Drop-down menus are produced by tucking link items under a main link in your menu editor area. To do that, add a link to your menu, then left-click and drag it under the menu item you want to use as the main link. Pull it slightly to the right until it locks in place.
Visit the WordPress Menus User Guide here for help with sub-menus, enabling link panels and adding custom classes.
If you add content later, you can always come back and add or delete items from your menu.