/**
  * forward method
  */
 public function forward()
 {
     $this->tabs->setTabActive('settings');
     $this->lng->loadLanguageModule('tax');
     require_once 'Modules/TestQuestionPool/classes/class.ilAssQuestionList.php';
     $questionList = new ilAssQuestionList($this->db, $this->lng, $this->pluginAdmin, $this->poolOBJ->getId());
     $questionList->load();
     require_once 'Services/Taxonomy/classes/class.ilObjTaxonomyGUI.php';
     $taxGUI = new ilObjTaxonomyGUI();
     $taxGUI->setAssignedObject($this->poolOBJ->getId());
     $taxGUI->setMultiple(true);
     $taxGUI->activateAssignedItemSorting($questionList, 'qpl', $this->poolOBJ->getId(), 'quest');
     $this->ctrl->forwardCommand($taxGUI);
 }