XF 1.5 How to add subnavigation links under this page

[Stockwalker]

Hi guys I made this page on my web site
http://www.canarywharfian.co.uk/partners/

and I want the sub navigation links to show up (the ones which can be seen at http://www.canarywharfian.co.uk/forums/).

What code should I add to the dashboard HTML editor?