Tableau follows this drag-and-drop pattern, but in a much more explicit way than Kibana, with the ability to drop columns onto slots with (more-or-less) predictable effects. It's immensely polished - and priced accordingly.

https://help.tableau.com/current/guides/get-started-tutorial...

I'm actually not sure there's a better UI pattern for the nontechnical user. If you want to visualize both the slots and the options at once to give people a sense of what they can do with their current schema... you don't just want a dropdown for each slot that's going to forget your state, move all over the place, etc.