How to render Zend_Navigation in different section in xml?

Question

How to render Zend_Navigation in different section in xml? Here my xml

<configdata>
    <admin>
        .....
    </admin>
    <default>
        .....
    </default>
</configdata>

I'm already testing this but render of menu get same result section admin

$navContainerConfig = new Zend_Config_Xml(APPLICATION_PATH . '/configs/navigation.xml', 'default');
$navContainer       = new Zend_Navigation($navContainerConfig);

$view->navigation = $view->navigation()->setAcl($this->acl)->setRole($role)->menu($navContainer);

$navContainerConfig     = new Zend_Config_Xml(APPLICATION_PATH . '/configs/navigation.xml', 'admin');
$navContainer           = new Zend_Navigation($navContainerConfig);
$view->navigationAdmin  = $view->navigation()->setAcl($this->acl)->setRole($role)->menu($navContainer);