title: How to create new View Controllers in XCode 4.3
body: <p>So I have figured out that in XCode 4.3, to create a new ViewController, I have to do New > Objective-C Class, then subclass UIViewController. But, how come the xib checkbox is greyed out? How do I create a new view controller with an xib?</p>
  
  <p><img src="https://i.stack.imgur.com/X5g4V.png" alt="enter image description here"></p>