protected function installEvents()
    {
        $this->uninstallEvents();
        $location = $this->getLocation();
        $model = $this->registry->getEventModel();
        $model->addEvent('acumulus','catalog/model/*/addOrder/after',$location . '/eventOrderUpdate');
        $model->addEvent('acumulus','catalog/model/*/addOrderHistory/after',$location . '/eventOrderUpdate');
        $model->addEvent('acumulus','admin/model/*/addOrder/after',$location . '/eventOrderUpdate');
        $model->addEvent('acumulus','admin/model/*/addOrderHistory/after',$location . '/eventOrderUpdate');
        $model->addEvent('acumulus','admin/view/common/column_left/before',$location . '/eventViewColumnLeft');
    }