new solution explorer feature in visual studio11 developer preview

Microsoft Visual Studio11 Developer preview comes with bunch of new features and Solution explorer is also get some new features in it. There are few new icons added at top of solution explorer like below. Create new window with copy of this Window Feature: Now there is a one feature given with solution explorer you can create a another instance of solution explorer via clicking on last icon on solution explorer. Once you click the Last Icon for create copy. It will open a new solution explorer windows...