David Miller

I'm not quite sure what you're trying to achieve here. You have one switch in homebridge, but 'Overhead' and 'Overhead 2'. Is your mqtt-thing switch not publishing ON and OFF...

rbswift's suggestion is a good one, but I understand it would be good if this can be implemented within mqttthing to save the additional infrastructure. However, to set your expectations...

I can see how that would be useful. Added to my list. In the meantime you might want to have a look at codecs for more complex scripting.

Not currently, unfortunately. I agree: it's a pain particularly when using the configuration GUI. Unfortunately, Homebridge accessories must either be of the 'platform' type where one configuration is used for...

Yes, cbus does it how I'd do it now (!) - it uses a platform-level config with an array of accessories. If I ever get time to do an MQTT-Thing...

Thanks, go for it!

You could achieve this with apply functions on the topics.

You might be able to use something like a Window or a Window covering (blind) for this?

I can only expose services defined by Apple, as listed in https://github.com/homebridge/HAP-NodeJS/blob/master/src/lib/definitions/ServiceDefinitions.ts. Is there anything more suitable there?

Pretty certain I support Window Covering already - that's the closest HomeKit comes to "curtain" I believe.