Referencing Nested Blocks by Key/Value with Elefront

Feature request for the next elefront update:

I want to reference objects from Rhino by a specific user attribute. That attribute might be applied to any geometry (crvs, srfs, etc), but also could be applied to blocks, and nested blocks.

Currently I have to do this to include all geometry and nested blocks:

Could the Reference Key/Value component have a right-click option to include nested blocks (like the Reference Block Name component)? Actually, this option would be nice on all of the elefront reference components.