Change schema - Add a `public`/`private` property for states/values?

[mStirner]

Should states be marked as private to hide it in the frontend?

Quick thought about it:

Controling my TV via UPnP & remote control, report the volume. To sync it about various protocols/interfaces a hidden state could be used.

That was just a "Blitzeinfall" without real use case currently. But in general: Is there something that would prevent/speaks against it?

[mStirner]

Extend this to:

• commands
• endpoints
• devices

???