event form placeholder for event_owner_name

add_filter('em_event_output_placeholder','my_em_get_anonymous_name',1,3);
function my_em_get_anonymous_name($replace, $EM_Event, $result){
	switch( $result ){
		case '#_ANONYMOUSNAME':
			$replace = $EM_Event->event_owner_name;
			break;
	}
	return $replace;
}