How Overwrite static mesh in parent blueprint via child?

Hello! I see this lessons:
Multiplayer Interaction System in Blueprint - Tom Looman…-in-blueprint/…-in-blueprint/

And in this says what i can easy overwrite static mesh in parent class via child. How i can do it?

I did it.
In Construction script need RBM and check “Context Sensitive” off. Then SET StaticMesh. In target get Parent static mesh, And in NewStaticMesh get Child StaticMesh.