how to move static mesh component ?

Hi all,

In my Actor blueprint, i have a static mesh component called MyMesh.

At run time id like to set its Location in world space. So i added AddChildActorComponent, right clicked on orange pin, chose “split struct”. Then i set the location i want.
Now that this Child actor component is spawned where i want, i’d like to attach MyMesh to it. How to do so please ?