Question

How could I add new menu after Post : media : Links : comments : <My Menu>???

I don’t want to add in the settings section instead after the link “Dashboard”

Answer 1

use add_menu_page

add_menu_page('Page title', 'Top-level menu title', 'manage_options', 'my-top-level-handle', 'my_magic_function');

to add sub menu add_submenu_page

add_submenu_page( 'my-top-level-handle', 'Page title', 'Sub-menu title', 'manage_options', 'my-submenu-handle', 'my_magic_function');