public function shouldDisplayGroupWith(array $group)
 {
     // Never group status changes with other types of actions, they're indirect
     // and don't make sense when combined with direct actions.
     $type_status = self::TYPE_STATUS;
     if ($this->getTransactionType() == $type_status) {
         return false;
     }
     foreach ($group as $xaction) {
         if ($xaction->getTransactionType() == $type_status) {
             return false;
         }
     }
     return parent::shouldDisplayGroupWith($group);
 }