Perch Nav custom link

Is it possible to create in the perch cms tree a 'page' which i actually just to represent a link to either another part of the cms tree or to an external site?

We are using perch nav, but the client has just asked to replace one page with a link to another part of the site, so breaking the current output.

Thanks!

My page html:

<nav>
<?php
 perch_pages_navigation(array(
'from-path' => '/sub-page',
'template'  => 'item.html',
'levels'    => 1
));
?>
</nav>

Diagnostic:

Perch Runway: 2.8.32, PHP: 5.4.45, MySQL: 5.5.46, with MySQLi
Server OS: Linux, cgi-fcgi
Installed apps: content (2.8.32), assets (2.8.32), categories (2.8.32), perch_blog (5.0), perch_forms (1.8.3)
App runtimes: <?php $apps_list = array( 'content', 'categories', 'perch_blog', 'perch_forms', );
PERCH_LOGINPATH: /perch
PERCH_PATH: /home/fullfatwebsite/public_html/zenithcosmetic/perch
PERCH_CORE: /home/fullfatwebsite/public_html/zenithcosmetic/perch/core
PERCH_RESFILEPATH: /home/fullfatwebsite/public_html/zenithcosmetic/perch/resources
Image manipulation: GD
PHP limits: Max upload 25M, Max POST 128M, Memory: 256M, Total max file upload: 25M
F1: 2edba60ed1f613d6dd804feb202456a2
Resource folder writeable: Yes
DOCUMENT_ROOT: /home/fullfatwebsite/public_html/zenithcosmetic
HTTP_HOST: zenithcosmetic.fullfatwebsitedesign.co.uk
REQUEST_URI: /perch/core/settings/diagnostics/
SCRIPT_NAME: /perch/core/settings/diagnostics/index.php