yes, this changes in qa-page-question-view.php works fine , thanks
$level=qa_get_logged_in_level();
if ($level>=QA_USER_LEVEL_ADMIN) {
$rules['hideable']=(!$post['hidden']) && ($rules['isbyuser'] || !$rules['queued']) &&
(!$permiterror_hide_show) && ($notclosedbyother || !qa_user_permit_error('permit_hide_show'));
}