Can i change the location of the socket on a static Mesh during ingame

I have a socket placed on a static mesh.
I want to change the location of that Socket in the game, i think it is the Relative Location.
I found ‘Set Relative Location’ but that asks for a Socket reference .But i cant find out how i get that reference.

My idee is, i want to move the attached static mesh during game throug that socket.
(if that is posible).