what this new feature of seo for?

hi ya.. can any one plz explain with full details that whats this new feature of seo for? and how it works?

Hi,

Please read part 2 in https://help.forumotion.com/updates-and-new-features-f1/express-update-modification-for-punbb-templates-your-own-subcategory-on-forumotion-directory-t48460.htm

EDIT: It's something meant for the next update, don't worry about it for now

thanks darren.. u sooo gud