prestshop:我怎么能在管理面板上为我的模块添加标签，当它安装

Prestashop: how can i add tab in admin panel for my module when it installing?

在安装时如何在管理面板中为我的模块添加选项卡?下面是模块http://dpaste.com/1PWGYHM

$this->languages = Language::getLanguages();
//Admin Pdf Output
$tab = new Tab();
foreach ($this->languages as $lang)
    $tab->name[$lang['id_lang']] = 'Admin Pdf Output';
$tab->class_name = 'AdminPdfOutput';
$tab->id_parent = -1;
$tab->module = $this->name;
$tab->active = 1;
if (! $tab->add()) return false;

然后我在module_dir/controllers/admin/AdminPdfOutput.php中创建一个文件，并像这样声明

class AdminPdfOutputController extends ModuleAdminController{
   ...
}