KB Tax

        // create the kb_categories taxonomy
        register_taxonomy( 'kb_categories', 'gyo_kb', array(
            'label' => __( 'KB Categories' ),
            'rewrite' => array( 'slug' => $_cat_rewrite ),
            'hierarchical' => true,
            'public' => true,
            'publicly_queryable' => true,
            'show_in_rest' => true,
            'show_admin_column' => true,
        ) );
        flush_rewrite_rules( );

        // create the kb_tags taxonomy
        register_taxonomy( 'kb_tags', 'gyo_kb', array(
            'label' => __( 'KB Tags' ),
            'rewrite' => array( 'slug' => $_tag_rewrite ),
            'hierarchical' => false,
            'public' => true,
            'publicly_queryable' => true,
            'show_in_rest' => true,
            'show_admin_column' => true,
        ) );
        flush_rewrite_rules( );