That‘s expected behaviour. You cannot link Items to trigger channels, they are used to trigger a rule, as they just fire an event (e.g. sunrise:START). There is no state to be shown.
No, this is incorrect. You can link a trigger channel to an item.
There are a few built-in system profiles that support trigger channels, as listed here:
Trigger profiles can also be created in JRuby.
Currently ScriptTransformation profile doesn’t support trigger channels. I’ll look into adding the support.
This is correct and true and needs to be fixed. It might be related to another issue discussed on the release thread related to linking channels to things.
But, in this particular case, there is no reason to need to link the trigger channels from Astro to an Item. There is nothing the trigger channels provide that isn’t also provided by the state channels.
@remisharrock, what are you trying to accomplish by linking the trigger channels to an item?