Change default order in home page widget
If you want to change the default order on home page widgets then there is an option for this in the T–>Homepage Display Posts widget, the option name is Sorting Options, you can select the Random option there.
Change default order on listing category pages
If you want to change the default order on Listing Category pages you need to make a change in a file named taxonomy_functions.php which is located at \wp-content\plugins\Tevolution\tmplconnector\monetize\templatic-custom_taxonomy\.
Open that file and around line number 174 you will find this query:
$orderby = " (SELECT distinct $wpdb->postmeta.meta_value from $wpdb->postmeta where ($wpdb->posts.ID = $wpdb->postmeta.post_id) AND $wpdb->postmeta.meta_key = 'featured_c' AND $wpdb->postmeta.meta_value = 'c') DESC, $wpdb->posts.post_date DESC";
Replace it with this query:
$orderby = "(select distinct $wpdb->postmeta.meta_value from $wpdb->postmeta where $wpdb->postmeta.post_id=$wpdb->posts.ID and $wpdb->postmeta.meta_key = 'featured_h') ASC,rand()";