Is it possible to comment on events?

Like the title suggests, I'd like to know if it's possible to have comments on events like you can comment profiles, classifieds, etc..

If it is, anybody care to share how? (I've done a search and come up with blank re: this)

There is a mod available for this in expertzzz.com

thanks :)

link for anybody that wants it..

http://www.expertzzz.com/Downloadz/view/3582