title: How to specify application data package in Xcode Schemes?
body: <p>I'd like to specify an application data package using Xcode schemes so that I can customize and deploy to the device during testing. However, by default, the Scheme | Option | Application Data combo box has no items in it. </p>
  
  <p>I guess I would need to create the package and add it to my xcodeproj. But I can't find any documentation about this, not even in the bulky book Xcode4 Unleashed. I also tried to build for Archive first. But after that still "No Data" under the Option page.</p>