title: AVD hardware buttons not enabled
body: <p>I just downloaded and installed the new Android SDK. When I start the emulator, on the emulator screen it says <em>"Hardward Buttons not enabled in AVD"</em>. There are <kbd>Home</kbd>, <kbd>Menu</kbd>, etc are all disabled. How do I make these buttons enabled?  </p>
  
  <p><img src="https://i.stack.imgur.com/tinJ4.png" alt=""></p>