Hi

I've installed the kit as a trial, with just the hub and one Thermostat. 

I want to try out the Geofencing feature for when my wife and I are both at work.

I can see how to set up a rule for my phone to say "turn off the heating when I leave the radius".

But how do I make sure it only turns off when we're BOTH outside the radius, and then turns on when only ONE of us comes back home?

Or is this how it works automatically anyway?

Thanks