text: In order to follow this tutorial, you must have Protégé 5, which is available from the Protégé website,1 
  and some of the Protégé Plugins which will be described in more detail below. For now, just make sure 
  you have the latest version of Protégé. At the time this is being written the latest version is 5.5 although 
  the tutorial should work for later versions as well. 
  
  The Protégé user interface is divided up into a set of major tabs. These tabs can be seen in the 
  Window>Tabs option. This option shows all the UI tabs that are currently loaded into the Protégé 
  environment. Any tabs that are currently opened have a check mark next to them. To see a tab that is not 
  visible just select it from the menu and it will be added to the top with the other major tabs and its menu 
  item will now be checked. You can add additional major tabs to your environment by loading plugins. For 
  example, when we load the SHACL4Protégé plugin the SHACLEditor will be added to the menu. 
  
  Each major tab consists of various panes or as Protégé calls them views. Each view can be resized or 
  closed using the icons in the top right corner of every view. The views can also be nested as sub-tabs 
  within each major tab. When there could potentially be confusion between a tab that is a screen all its own 
  (is under the Window>Tabs option) and a view that is a sub-tab we will call the screen tab a major tab. 
  There are many views that are not in the default version of Protégé that can be added via the 
  Window>Views option. The additional views are divided into various categories such as 
  Window>Views>Individual views. Section 5.2 will show an example of adding a new view to a major 
  tab. 