Test multiple IOS Device with Xcode Server

It is possible to test multiple IOS devices with OSX Server and XCode Server

Continuous Integration with Xcode 6

I hope I have understood the problem correctly.

The Problem with test multiple IOS devices is. That instruments can run only one device at a time.

With XCode Server it is possible to run more then one device at the same time.


Has anyone tried this?
Can Appium handle multiple sessions out of the box or Appium changes are required?