title: Add AIR 2 to FB4?
body: <p>I downloaded and installed FB4 beta 2. I want to try out some of the new AIR 2 beta features, but AIR 2 is not packed with FB4 by default, how can I set this up?</p>
  
  <p>Thanks!</p>
  
  <p>(Also if possible I still want to be able to use FB3+AIR1 for regular projects)</p>