Admin menu (admin panel) (tag)
| add_menu_page() | Add a top-level menu page to the Dashboard (next to Posts, Pages, Users etc). |
| add_options_page() | Add submenu page to the Settings main menu. |
| add_submenu_page() | Add a submenu page. This function takes a capability which will be used to determine whether or not a page is included in the menu. |
| add_theme_page() | Add submenu page to the Appearance main menu. |
| remove_menu_page() | Remove a top-level admin menu item, ex: "Posts", "Media", "Pages". |
| remove_submenu_page() | Remove an admin submenu. |