Topic: show #more fields automatically

instead of my posters clicking #show fields i want the fields to show automatically. The add news php file says

// Check optional fields
        $optfields = array();
        foreach ($cfg['more_fields'] as $i => $v)
        {
            if ($v[0] == '&' && $_REQUEST[$i] == false)
                $optfields[] = substr($v, 1);
        }

But not knowing PHP i dont know how to get it to show them automatically.