/**
  * Add pages that show the user an overview of the tracks / surveys used
  * in the project.
  *
  * @param string $label
  * @param array $other
  * @return \Gems_Menu_SubMenuItem
  */
 public function addProjectPage($label)
 {
     if ($this->escort instanceof \Gems_Project_Tracks_SingleTrackInterface) {
         if ($trackId = $this->escort->getTrackId()) {
             $infoPage = $this->addPage($label, 'pr.project', 'project-tracks', 'show')->addHiddenParameter(\MUtil_Model::REQUEST_ID, $trackId);
             $trackSurveys = $infoPage;
         } else {
             $infoPage = $this->addPage($label, 'pr.project', 'project-tracks');
             $trackSurveys = $infoPage->addShowAction('pr.project');
         }
         $trackSurveys->addAction($this->_('Preview'), 'pr.project.questions', 'questions')->addNamedParameters(\MUtil_Model::REQUEST_ID, 'gro_id_track', \Gems_Model::SURVEY_ID, 'gsu_id_survey');
         $infoPage->addAutofilterAction();
         // \MUtil_Echo::track($infoPage->_toNavigationArray(array($this->_getOriginalRequest())));
     } else {
         $infoPage = $this->addContainer($label);
         $tracksPage = $infoPage->addPage($this->_('Tracks'), 'pr.project', 'project-tracks');
         $tracksPage->addAutofilterAction();
         $trackSurveys = $tracksPage->addShowAction('pr.project');
         $trackSurveys->addAction($this->_('Preview'), 'pr.project.questions', 'questions')->addNamedParameters(\MUtil_Model::REQUEST_ID, 'gro_id_track', \Gems_Model::SURVEY_ID, 'gsu_id_survey');
         $surveysPage = $infoPage->addPage($this->_('Surveys'), 'pr.project', 'project-surveys');
         $surveysPage->addAutofilterAction();
         $surveysPage->addShowAction('pr.project');
     }
     return $infoPage;
 }