public function addCalendarPage($label)
    {
        $page = $this->addPage($label, 'pr.calendar', 'calendar');
        $page->addAutofilterAction();
        $page->addExportAction();
        $page->addImportAction();
        $page->addAction(null, 'pr.calendar.simple-api', 'simple-api');

        return $page;
    }