How to create proper Use Cases objects inside ESM?

How to create proper Use Cases objects inside ESM? I'm talking about the Use Cases tab.

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It's very powerful and useful, but we can only import pre-made Use Cases. I read some time ago that there is a little hack to edit pre-made Use Cases and put custom content in there, but in no way I would use that in production because it would not be officially supported. As of ESM 6.11, is there a proper way to create those objects?