code: public function init()
      {
          $this->setLabel('general settings');
          
          $this->add(
              array(
                  'type' => 'Core\Form\Element\Select',
                  'name' => 'language',
                  'options' => array(
                          'label' => /* @translate */ 'choose your language',
                          'value_options' => array(
                                  'en' => /* @translate */ 'English',
                                  'fr' => /* @translate */ 'French',
                                  'de' => /* @translate */ 'German',
                                  'it' => /* @translate */ 'Italian',
                                  'po' => /* @translate */ 'Polish',
                                  'ru' => /* @translate */ 'Russian',
                                  'tr' => /* @translate */ 'Turkish',
                                  'es' => /* @translate */ 'Spanish',
                          ),
                          'description' => /* @translate */ 'defines the languages of this frontend.'
                  ),
              )
          );
  
          $timezones=array_merge(
              \DateTimeZone::listIdentifiers(\DateTimeZone::AFRICA),
              \DateTimeZone::listIdentifiers(\DateTimeZone::AMERICA),
              \DateTimeZone::listIdentifiers(\DateTimeZone::ASIA),
              \DateTimeZone::listIdentifiers(\DateTimeZone::ATLANTIC),
              \DateTimeZone::listIdentifiers(\DateTimeZone::AUSTRALIA),
              \DateTimeZone::listIdentifiers(\DateTimeZone::EUROPE),
              \DateTimeZone::listIdentifiers(\DateTimeZone::INDIAN),
              \DateTimeZone::listIdentifiers(\DateTimeZone::PACIFIC)
          );
          
          $this->add(
              array(
                  'type' => 'Core\Form\Element\Select',
                  'name' => 'timezone',
                  'options' => array(
                          'label' => /* @translate */ 'choose your timzone',
                          'value_options' => $timezones,
                          'description' => /* @translate */ 'defines your local timezone.'
                  ),
              )
          );
      }
docs: Initialize the Sele