How do I change the iOS version for the Simulator?

Environment: Version 8.2 beta (8C30a)

My schema list only devices.
How do I change the iOS version in simulator?

I can see the available iOS Simulators...

...but they're not listed in the schema list.
Nor is their a way to discriminate amongst the iOS versions within schema manager.

The list of available simulators is dictated by three factors:

1. It will not show you simulators whose iOS version is prior to that of your current app's deployment target. If you want to see some recent, prior iOS simulators, make sure your app's deployment target is set accordingly.

   

2. If you go to Xcode "Preferences" - "Components", you can confirm which iOS simulators are installed on your machine.

   

3. In Xcode's "Devices" window (shift+command+2), as shown in the snapshot in your original question, you can configure particular simulator devices for your Xcode environment.

Open your xcode and press command + shift + 2.

Click on left bottom + button and your new simulator with required iOS version.

Click create, now you are ready to use the new simulator.