/**
  * load the form
  */
 private function loadForm()
 {
     // check if user is almighty
     $this->isGod = BackendAuthentication::getUser()->isGod();
     // create form instance
     $this->frm = new BackendForm('settings');
     // fetch module settings
     $this->settings = BackendModel::getModuleSettings('Mailchimp');
     // connect to mailchimp and get the lists
     $mailchimp = $this->getContainer()->get('zfr_mail_chimp')->getClient();
     $lists = $mailchimp->getLists();
     // loop the lists and add to key value array
     $listItems = array();
     if ($lists['total'] > 0) {
         foreach ($lists['data'] as $l) {
             $listItems[$l['id']] = $l['name'];
         }
     }
     // add the formfields
     $this->frm->addDropdown('list', $listItems, $this->settings['activeList']);
 }