Yes you can just not enable it. It is disabled by default. Maybe if you register everything through the app on your phone you need to be a bit careful. I think

Yes you can just not enable it. It is disabled by default. Maybe if you register everything through the app on your phone you need to be a bit careful. I think that makes it easy to enable the cloud tunnelling. Indeed. You need the controller running first before you can configure AP, Switches, and gateways.