php - How to include excerpt option on taxonomy category page? -

i trying add excerpt option category page, display instead of description.

so basically, need box on screen able used preview text.

the code used create taxonomy is:

add_action( 'init', 'create_product_cat_external' );  function create_product_cat_external() {   register_taxonomy(     'externalproducts',     'products',     array(         'label' => __( 'external products' ),         'rewrite' => array( 'slug' => 'externalproducts' ),         'hierarchical' => true,     )   ); } 

and box needs here:

you can use cmb2 plugin , put in functions.php example:

    add_action( 'cmb2_admin_init', 'yourprefix_register_taxonomy_metabox' );     function yourprefix_register_taxonomy_metabox() {         $prefix = 'yourprefix_term_';                 $cmb_term = new_cmb2_box( array(             'id'               => $prefix . 'edit',             'object_types'     => array( 'term' ), // tells cmb2 use term_meta vs post_meta             'taxonomies'       => array( 'products'), // tells cmb2 taxonomies should have these fields             // 'new_term_section' => true, // display in "add new category" section         ) );          $cmb_term->add_field( array(             'name'       => __('excerpt', 'default'),                        'id'       => $prefix . 'excerpt',             'type'     => 'wysiwyg',             'on_front' => false,         ) );     }