Referring components to each other in BP

Hi Folks,

I have an actor-derived blueprint. It has two actor components that I want to be able to reference each other.
I am able to set the references in the event graph just fine but was wondering if there was a way to do it through the defaults panel in the properties editor (The dropdown seems to only show objects in the current scene, maybe?)

I saw a similar question, but it seems to be a C++ question.

Thanks for your time! Cheers!