Can a device appear in multiple zones?

Consider rooms A, B and C. Each room has a door that connects to the others (doors AB, BC and CA). Each room has a motion sensor and a light. I would like to turn on the light in a room if there is motion in that room or one of its doors has been opened.

Homey supports zones to aggregate sensors that will trigger automation to turn on lights. Unfortunately, as I understand it, a sensor can only be in one zone. In order to use zone activity to trigger my lights, each of my doors would need to be in the two zones that it connects.

Do I misunderstand (is there a way for a device to appear in multiple zones)?

What is the best way to solve this problem?
Any solution that I can think of would result in the creation of intermediate virtual devices that would aggregate triggers to turn on the light.
These all seem messier than just being able to place a door sensor on the threshold of two zones in each.

A device can only be in 1 zone. You can use the Virtual Devices app to add it multiple zones, by creating a VD and copying the state from the original device within a Flow.

No.

Correct

IMO, Homey needs this feature. How do I request it?

First of all, welcome to the Homey Community!

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But Maybe you should report this to Athom support:

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Or search the community for fe [Info] Ideas / Feature Requests

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Perhaps your scenario is only hypothetical, but

Even without virtual contactsensors the flow can be pretty simple and straightforward.
(Assuming contactsensor door AB is in zone room A and so on)

Thank you very much for your suggestion!
I will have to play with that pattern when I get my Homey Pro next week.

Of course, it would be much much simpler if sensors could be in multiple zones:
When zone A active → Then turn light A on, etc.

Unfortunately I made a mistake in the blue cards. I replaced the screenprint

Consider Homey as LEGO. Using standard elements you can build your own system. Adding additional elements makes an overview of the standard elements and finding the right elements for your solution more complex. So that is why solutions you can build using standard functions are unlikely to be implemented as a new standard function. But of course you can always request Athom for a product improvement.

You should know sub-zones can activate parent zones as well, which brings you some possibilities.

https://support.homey.app/hc/en-us/articles/360026209853-Using-Zone-Activity

Thanks. I was aware of that which is why my example has three rooms instead of just two.

I think the product could be enhanced in this regard. As far as requesting such, I understand that creating a demand for it in these forums is the mechanism for doing so.

No this is a user platform. You have to contact Athom: How do I contact Athom?