[@chrishajer Participant 18 years, 10 months ago]

There are a couple of tricks you could use (I have no idea how it’s done officially.)

In your site, all you would need to do is insert this into the template that contains the page navigation you have now (Home, About and Contact all appear to be pages):

<li class="page_item"><a href="<?php bloginfo('url'); ?>/forum/" title="Visit the forum">Forum</a></li>

HTH

Chris