$name, 'labels' => $labels, 'public' => true, 'hierarchical' => false, 'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes' ), 'rewrite' => array( 'slug' => 'calendar' ) ); register_post_type( 'sp_calendar', $args ); } add_action( 'init', 'sp_calendar_cpt_init' ); function sp_calendar_edit_columns() { $columns = array( 'cb' => '', 'title' => __( 'Title' ), 'sp_team' => __( 'Teams', 'sportspress' ), 'sp_league' => __( 'Leagues', 'sportspress' ) ); return $columns; } add_filter( 'manage_edit-sp_calendar_columns', 'sp_calendar_edit_columns' ); ?>