add_action( 'init', 'my_add_excerpts_to_pages' );
function my_add_excerpts_to_pages() {
add_post_type_support( 'page', 'excerpt' );
}http://www.wpbeginner.com/plugins/add-excerpts-to-your-pages-in-wordpress/
add_action( 'init', 'my_add_excerpts_to_pages' );
function my_add_excerpts_to_pages() {
add_post_type_support( 'page', 'excerpt' );
}http://www.wpbeginner.com/plugins/add-excerpts-to-your-pages-in-wordpress/