Missing Tabs

I was reading the "Furnishing a Room" article. It shows a few tabs that I can not find. The Blend4Web tab is missing in the Scene, Export, and some of the other panels. Please see my attached image. I have the render setting on Blend4web and I am able to export html and json. Maybe I am missing a basic step?

Hi!

The Blend4Web tab is missing in the Scene, Export, and some of the other panels.

Since 15.06 the interface no longer has Blend4Web tabs. We are in process of updating all the tutorials, but this takes time. The user manual should be up-to-date. Hope this helps!

Okay, good. Thanks for the reply.