Show Child Actor Variables in Editor Panel?

Hello guys,

is it possible to show child actor variables in the editor panel. If i add a child actor to my blueprint its no problem to change these variables inside the blueprint. But if i add than the blueprint to the scene I see only the varibles of the blueprint (exclude the child actor).

As example the Character Movement Component. There are also all variables visibile in the editor panel. How do they do this?

Greets
Hajime