For now, you'll have to do this manually.
1) Open bbpress/bb-plugins/header.php (or bbpress/my-plugins/header.php to play it safe)
2) Find: <div id="pmenu">
3) Under it is a line starting with <a href="<?php option('uri'); ?>portal.php">Home</a>
4) This is the basic menu link for the Home link. To add a link just copy this line and rename portal.php to the file you want. Also rename Home to what ever you want. Now you'll have something like this: <a href="<?php option('uri'); ?>excample.php">Excample</a>
5) Now add this in the line where ever you want it to appear.
6) Add • infront or behind your added code. This shows the • between the links in the menu.
7) Save and upload header.php
Note: Make sure that the .php file you refere to is in the bbPress root (where index.php is)