How would one add a custom BP Scene Component to a non-blueprint Actor?

I am trying to finish up a Blueprint submission to the UE4 Marketplace and my system is based off of the use of a custom Blueprint Component (Scene Component). Is there a way that users of my system would be able to attach this component to Actor classes/subclasses that they program in C++ and how would one do this?

That is:
“How would one attach a custom BP Scene Component made in Blueprints to an Actor class/subclass (if possible)?”

I really want to know if this is possible, and if so how to do it, so I know what to include in my documentation.

I had the same question, someone answered it here:

That wasn’t really what I was asking about. I was wondering if there is an approach that a C++ coder can take, like maybe a method similar to UCreateDefaultSubobject method that allows a C++ class to create/ get a reference to a custom component.