/**
* @param array $thread
* @param array $forum
* @param array $multimod
* @param string $errorPhraseKey
* @param array $nodePermissions
* @param array $viewingUser
* @return bool
*/
public function canUseMultiModeration(array $thread, array $forum, array $multimod = array(),&$errorPhraseKey = '',
array $nodePermissions = null, array $viewingUser = null)