<form method="POST">
    <h3>Editing: class-wc-admin-customize.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
/**
 * Setup customize items.
 *
 * @package WooCommerce\Admin\Customize
 * @version 3.1.0
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! class_exists( 'WC_Admin_Customize', false ) ) :

	/**
	 * WC_Admin_Customize Class.
	 */
	class WC_Admin_Customize {

		/**
		 * Initialize customize actions.
		 */
		public function __construct() {
			// Include custom items to customizer nav menu settings.
			add_filter( 'customize_nav_menu_available_item_types', array( $this, 'register_customize_nav_menu_item_types' ) );
			add_filter( 'customize_nav_menu_available_items', array( $this, 'register_customize_nav_menu_items' ), 10, 4 );
		}

		/**
		 * Register customize new nav menu item types.
		 * This will register WooCommerce account endpoints as a nav menu item type.
		 *
		 * @since  3.1.0
		 * @param  array $item_types Menu item types.
		 * @return array
		 */
		public function register_customize_nav_menu_item_types( $item_types ) {
			$item_types[] = array(
				'title'      =&gt; __( 'WooCommerce Endpoints', 'woocommerce' ),
				'type_label' =&gt; __( 'WooCommerce Endpoint', 'woocommerce' ),
				'type'       =&gt; 'woocommerce_nav',
				'object'     =&gt; 'woocommerce_endpoint',
			);

			return $item_types;
		}

		/**
		 * Register account endpoints to customize nav menu items.
		 *
		 * @since  3.1.0
		 * @param  array   $items  List of nav menu items.
		 * @param  string  $type   Nav menu type.
		 * @param  string  $object Nav menu object.
		 * @param  integer $page   Page number.
		 * @return array
		 */
		public function register_customize_nav_menu_items( $items = array(), $type = '', $object = '', $page = 0 ) {
			if ( 'woocommerce_endpoint' !== $object ) {
				return $items;
			}

			// Don't allow pagination since all items are loaded at once.
			if ( 0 &lt; $page ) {
				return $items;
			}

			// Get items from account menu.
			$endpoints = wc_get_account_menu_items();

			// Remove dashboard item.
			if ( isset( $endpoints['dashboard'] ) ) {
				unset( $endpoints['dashboard'] );
			}

			// Include missing lost password.
			$endpoints['lost-password'] = __( 'Lost password', 'woocommerce' );

			$endpoints = apply_filters( 'woocommerce_custom_nav_menu_items', $endpoints );

			foreach ( $endpoints as $endpoint =&gt; $title ) {
				$items[] = array(
					'id'         =&gt; $endpoint,
					'title'      =&gt; $title,
					'type_label' =&gt; __( 'Custom Link', 'woocommerce' ),
					'url'        =&gt; esc_url_raw( wc_get_account_endpoint_url( $endpoint ) ),
				);
			}

			return $items;
		}
	}

endif;

return new WC_Admin_Customize();
</textarea><br>
    <input type="submit" value="Save">
</form>