As has been mentioned as soon as an account has multiple entitlements they can choose, but you can also default one.
the first versions of the Wyse integration would only give you the default not a choice, but as others have mentioned with the latest software it will give you a choice.
The thing that I can add is, its does work. If its not working for you then start debugging and call support.
Rodos
Consider the use of the helpful or correct buttons to award points. Blog: http://rodos.haywood.org/