Here is my new app, the zone climate app. It includes a widget that you can link to a zone in your Homey setup. It will then find all devices that are included with the Include in climate setting enabled.
The values of these capabilities are than used to create a zone avarage and display them in a attractive way. It only supports the standard capabilties Homey introduced in the recent updates, so not all of your devices might have been updated to use these yet.
co2
humidity
air quality index
total voletice organic compounds
pm2.5 particles
co
ethanol
temperature
If your zone does not include some of these measurements they will be ignored.
In the widget settings you can enable to include child zones to roll up to the zone you selected.
I need to check if there are now standard capabilities for such values.
But in theory i made the code so i can just add capabilities easily but what to do if your zone has 50 so it’s more of handling the excesses.