nvm, i found a solution for multiple emails
function my_zeno_report_comments_admin_email() {
$editors = get_users( array ( 'role' => 'editor' ) );
$emails = array ();
foreach ( $editors as $editor ) $emails[] = $editor->user_email;
return $emails;
}
add_filter( 'zeno_report_comments_admin_email', 'my_zeno_report_comments_admin_email' );