Add Excerpt Functionality To WordPress Pages

add_excerpt_to_wordpress_page.php

<?php
/**
 * Add Excerpt Functionality To WordPress Pages
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function add_excerpt_to_wp_pages() {
	add_post_type_support( 'page', 'excerpt' );
}
add_action( 'init', 'add_excerpt_to_wp_pages' );