I have noticed something in "What's New" section for Xcode 8.2 in Appstore.
https://itunes.apple.com/us/app/xcode/id497799835?mt=12
Simulator installs an app by drag-and-drop onto the Simulator window
But I have tried drag-and-drop with .app / .ipa file to the simulator window but it didnt installed the app. how to use this feature?