Thanks, that makes sense. One concern I have is that even if I build a tool to generate the Data Sets from JSON, the tool still needs to generate and maintain the corresponding Data Structures first. So the workflow becomes: JSON → infer schema → generate Data Structure → generate Data Set → use it ...

What I meant is a simpler data structure—without having to create tables or fixed columns just to populate a display list...

For example, importing JSON to populate that ListBoxItem without needing to create a Data object.

Is there a simpler way to add data to lists, bindings, etc.?

The Data tab is great, but it's too complex; I just need to fill in some data for a quick preview without all the complexity...