How can I add a link to another page into my main navigation?

I'm running Perch Runway and I have a master page 'Course' which displays a single Course from a collection. I would like to be able to create a link in my main navigation to a specific course. I tried creating a new page and pointing the Location to the course url, but no luck there. Really I just need a page to redirect to a url I give it (except for the overhead that an extra 301 gives me...)

I'm displaying my navigation with:

<?php
perch_pages_navigation(array(
    'from-path'            => '/',
    'levels'               => 0,
    'hide-extensions'      => true,
    'hide-default-doc'     => true,
    'template'             => ['main-item.html', 'main-dropdown-item'],
    // 'include-parent'       => false,
    'add-trailing-slash'   => true,
));
?>

Any ideas?

Thanks!