What's the story with Benefit Booklets?

What's the story with Benefit Booklets?

From the Broker Service Team side (Benefits/Booklets) I can export a Benefit Booklet for any of our clients. I wasn't here when this feature was setup and, though there are improvements I'd love to see, I can edit it to easily create a resource for our clients. 

I'm curious as to why I can't find any mention of it in the knowledge base or broker collateral files.