private function populateNewQuestionSelectionRuleInputs()
{
$availablePools = $this->questionSetConfig->getSelectableQuestionPools();
require_once 'Services/Form/classes/class.ilSelectInputGUI.php';
$poolSelection = new ilSelectInputGUI(null, 'quest_pool_id');
$poolSelection->setOptions($this->buildSourcePoolSelectOptionsArray($availablePools));
$this->addInputItem($poolSelection, true);
$this->addFormButton($this->lng->txt('tst_rnd_quest_set_tb_add_pool_btn'), ilTestRandomQuestionSetConfigGUI::CMD_SHOW_CREATE_SRC_POOL_DEF_FORM);
}