I maybe able to help with your nest query. When you copied @Dianoga’s code into your own new device type there’s a part in the code that look like this:
// ============================================================
// Slider or Buttons...
// To expose buttons, comment out the first detials line below and uncomment the second details line below.
// To expose sliders, uncomment the first details line below and comment out the second details line below.
details(["temperature", "thermostatOperatingState", "humidity", "thermostatMode", "thermostatFanMode", "presence", "heatingSetpoint", "heatSliderControl", "coolingSetpoint", "coolSliderControl", "temperatureUnit", "refresh"])
// details(["temperature", "thermostatOperatingState", "humidity", "thermostatMode", "thermostatFanMode", "presence", "heatingSetpointDown", "heatingSetpoint", "heatingSetpointUp", "coolingSetpointDown", "coolingSetpoint", "coolingSetpointUp", "temperatureUnit", "refresh"])
// ============================================================
There is one line of code (below) that we are specifically interested in as this sets what tiles and in what order they appear in the app:
details(["temperature", "thermostatOperatingState", "humidity", "thermostatMode", "thermostatFanMode", "presence", "heatingSetpoint", "heatSliderControl", "coolingSetpoint", "coolSliderControl", "temperatureUnit", "refresh"])
What you need to do, is modify this line with the stuff you want to see when you access your nest thermostat in the ST app. For example, I’ve set mine up like this:
details(["temperature", "thermostatMode", "presence", "heatingSetpoint", "heatSliderControl", "thermostatOperatingState", "humidity", "refresh", "temperatureUnit"])
If you compare mine with the original you'll notice that I've removed the cooling and fan options, and shuffled a few things around so they still appear correctly on my Android phone. If you're not on Android or prefer a different layout, you'll might want to play around with this to get it to your liking.
Nearly forgot, If you need Celsius, just hit the “temperatureUnit” tile (thermometer icon) to switch between C and F