can i do a bulk index to Already published post and pages

Hello,

Thank you for getting in touch and I am extremely sorry about the trouble this might have caused.

I am sorry but doesn’t have a feature to bulk update the index/noindex option. You may have to change this in your individual posts in WP > Posts > Your Post > Advanced Tab in Rank Math.
Screenshot:

A work around to this would be to define all the posts in an array or a category then use the following filter which will change the robots meta in the front end making the posts specified to have an indexable robots tag.

/**
 * Allows filtering of the robots meta data.
 *
 * @param array $robots The meta robots directives.
 */
add_filter( 'rank_math/frontend/robots', function( $robots ) {
     global $post;
        $robots['index'] = "noindex";
	return $robots;
});

Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.