pimax\FbBotApp::setPersistentMenu PHP Метод

    public function setPersistentMenu($buttons)
    {
        $elements = [];
        foreach ($buttons as $btn) {
            $elements[] = $btn->getData();
        }
        return $this->call('me/thread_settings', ['setting_type' => 'call_to_actions', 'thread_state' => 'existing_thread', 'call_to_actions' => $elements], self::TYPE_POST);
    }