A while ago I wanted to test youTube as a mean to distribute demos of JDeveloper so I did a quick recording of a tip showing how to use the navigation list item and put it up there - but the quality was bad - the image too small.
In the last week I had a couple of people ask the question of "I want to select an item from a list and have this influence what is shown in the rest of the page".
The answer is you use partial page rendering between the list and the section of the page - but if you are too lazy to code this - then the navigation list feature of ADF is what you are looking for - no coding or attribute setting needed.
I re-recorded the demo with JDeveloper 11 this time - and put it out on my YouTube Chanel.
You can see how to create this scenario here.