I am not sure whether this is a bug in Main UI or intended behaviour:
The Homematic binding creates all thing and channel definitions dynamically. For a dimmer there is a channel-type “LEVEL”. This channel-type contains several entries as you can see here:
The entries are correctly considered e.g. in he equipment display:
But when I open “Add Metadata / State Descriptions” the values for “Max”, “Min”, … are empty:
value: ""
config: {}
I would have expected that here the default values from the channel-type definition were visible.
I am not sure whether the current behavior is intended or not and whether it makes sense to create an issue (bug or enhancement).