>It's an option. You can have solution explorer select the current document. FYI, this option existed in VS2012
What I meant is this:
VS 2012
Go in Solution Explorer
Click on a class
You will see it appear in the main window
From the Solution Explorer click on another class
You will see it appear in the main window
Close that window
See that the Solution Explorer has bounced back to the first class
If you do the same thing in VS 2013, it will not.