Comment 1 for bug 1480864

The Wi-Fi screen is not supposed to have a checkbox next to the current network. <https://wiki.ubuntu.com/Networking#wi-fi-phone>

That's not germane to this bug report, though -- unless it is the only thing that made you think you should be able to be able to switch from wi-fi to mobile data, when known wi-fi networks are available, without turning off wi-fi. Is it? Or do you have some use case for doing that?