Q:

How to add another target with different bundle ID in the new Xcode5

In Xcode 4, I could easily add another target with different BundleID, the purpose is for customisation and testing, I can easily create one by Adding a target. 
But now when I add a target, the new file window pops up. How do I do this now?

A:

You can add a new target with XCode 5 and change the bundle identifier like this :

Next, in the folder Supporting Files in your info-plist :

Modify the key Bundle identifier with the new bundle of your new target :

