
Hi @Manuel Hambloch ,
You want to set managed metadata columns based on selected managed metadata ,display the terms below the selected first-level term .Do not display other first-level terms, etc.
I am a technical support engineer who focuses on SharePoint, and there is no way to realize this function from the SharePoint level. After my internal and external search, I found that maybe it can be achieved using Power Apps, please refer to this thread:
So we suggest you start a new discussion in the Power Apps Community on this issue so that you can get more professional help, there will be very professional people to tell you the steps on how to realize this function.
Hope the information can help you. And if there have any unclear or misunderstanding, please feel free to post back and we’ll continue to help you all the time!
Your understanding and patience will be highly appreciated! Hope you have a good day and keep safe!
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