ORD 2022 R1 - Civil Labeler - creating labels in dgnlib

I have a question regarding to creating new labels in Civil Labeler tool in dgnlib.

I used to do that in Civil Labeler Manager Tool using xml file but now in dgnlib it's no longer possible. I've imported my label definitions into dgnlib and I can't find any option to create new one. Are somewhere  some tutorials available? 

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