public function modularTwig($var = null)
    {
        if ($var !== null) {
            $this->modular_twig = (bool)$var;
            if ($var) {
                $this->visible(false);
                // some routable logic
                if (empty($this->header->routable)) {
                    $this->routable = false;
                }
            }
        }

        return $this->modular_twig;
    }