There is no back-end option for this feature, but can be easily achieved by a small custom code. A similar code for archive pages can be found here.
What is this, and where do I put this custom code?
add_filter( 'asp_query_args', 'asp_posts_from_same_cat', 10, 2 );function asp_posts_from_same_cat($args, $search_id) {$taxonomy = 'category'; // Enter the taxonomy name// Do not change anything below$categories = wp_get_post_terms( $args['_page_id'], $taxonomy, array('fields' => 'ids') );if ( !is_wp_error($categories) && count($categories) ) {$args['post_tax_filter'][] = array('taxonomy' => $taxonomy, // taxonomy name'include' => $categories, // array of taxonomy term IDs to include'exclude' => array(),'allow_empty' => false // allow (empty) items with no connection to any of the taxonomy terms filter);}return $args;}