How could I get a iOS target/scheme to run in xcode

Hello, I am a Unreal Engine newbie starting from UE4 4.15.1 and xcode 8.2.1

After create new c++ project (mydemo) from I can open the xcodeproj file with xcode, but I found only a scheme “mydemo” which could only run on Mac OS X.

Is there some config to get a complete iOS scheme/target, works like a individual iOS xcode project?