title: How to implement nested tab-views in Eclipse RCP?
body: <p>Do someone has an Idea, how to implement a Layout in RCP, 
  where the Views would look like Tabs and appear nested?</p>
  
  <p>The Tabs should have all the advantages of Views - can be dragged to the desktop to become a detached view, be tiled near each other, rearranged etc.</p>
  
  <p>On the picture the views: View4 and View5 are nested into View1.</p>
  
  <p><img src="https://i.stack.imgur.com/Ry19z.png" alt="Layout"></p>