WP Symposium Pro supports unlimited forums, and setting them up couldn’t be easier. The WP Symposium Pro Extensions plugin adds a wealth of additional features that you can refer to on this site.
To add a forum, go to WPS Pro->Setup and click on the “Add Forum” button.
You will see two fields that you can fill in, and then click the Publish button. For example:
This will create the forum, and add a new WordPress page.
You will be prompted to add this to your WordPress menu, which is probably a good idea so your users can find the forum!