I'm wondering if it's possible to set an addon as the default page instead of the forum? For example, in IPB you can change the default application by editing the value of a constant. If you set that value to say 'portal' your main page would now show the portal instead of having it at /portal. The forum index could then be located at /forums, /index, or another subdirectory. Is it possible to do that in XenForo?