Nested Query Support

I’d like to be able to make a query structure that’s several levels deep, beginning with a parent-level taxonomy terms, followed by a child taxonomy terms, and finally the posts assigned to each taxonomy.

In order to achieve this, I believe I’d need to embed a query inside a query and set dynamic filters based on the results of the parent query, but I don’t believe that’s possible at the moment, so hence this new feature request.

To detail this request a bit more, in the below screenshot, I’d like to see “Taxonomy Query” as a Dynamic source in this second/embedded query parameters, to allow for selecting data from the parent query object.

Specifically, it should be identical to the dynamic content dialog of a block embedded in the parent query: