How to add a new menu area in wordpress

In the process of customizing templates, it is often necessary to add and display a new WordPress menu. To do this, you need to paste the following code into functions.php:

function wpb_custom_new_menu() {
  register_nav_menu('my-custom-menu',__( 'My Custom Menu' ));
}
add_action( 'init', 'wpb_custom_new_menu' );

If you need to add multiple areas use this code:

function wpb_custom_new_menu() {
  register_nav_menus(
    array(
      'my-custom-menu' => __( 'My Custom Menu' ),
      'extra-menu' => __( 'Extra Menu' )
    )
  );
}
add_action( 'init', 'wpb_custom_new_menu' );

Include new menu in template

In the place where you want to see the new menu, paste the following code:

wp_nav_menu( array( 
'theme_location' => 'my-custom-menu', 
'container_class' => 'custom-menu-class' ) );