/**
  * Sets scope for backend config
  *
  * @param string $sectionId
  * @return bool
  */
 protected function isSectionAllowed($sectionId)
 {
     $website = $this->getRequest()->getParam('website');
     $store = $this->getRequest()->getParam('store');
     if ($store) {
         $this->_backendConfig->setStore($store);
     } elseif ($website) {
         $this->_backendConfig->setWebsite($website);
     }
     return parent::isSectionAllowed($sectionId);
 }