I planned to write this post for quite some time now, but never actually came to writing it. I've got a lot of questions in the past related to our demo site and the menu structure. After I had a look at a customer's website over the weekend only to find around 30 menus with each 1-2 entries in them I decided that it's time to share what I know. And believe me the information that you are going to find is not a secret, but I find an astonishing number of people that don't know about this "trick".
So, If you look at our demo site you'll notice that on the top we have our main navigation and then on the right we have a menu that is related to current page/extension. Here is a screenshot.