Custom number of features in search form

functions.php

<?php

/**
 * Custom number of features in search form
 */
add_filter( 'wpsight_get_advanced_search_fields', 'custom_get_advanced_search_fields' );

function custom_get_advanced_search_fields( $fields ) {

  $fields['feature']['data']['number'] = 20; 
  return $fields;
  
}