在Xcode7.0中手动安装模拟器SDK 8.0

It is known that Xcode 7.0 does not support the iOS 8 simulator any more. So when I go to the download preferences I only find the iOS 8.1 simulator and higher. But I really need to test my code on iOS 8.0 and I don't have any device supporting that version, so I need to do this from the simulator. It is known that Xcode 7.0 does not support the