Interaction between pawn in Multi user template

i’m testing the new multi user viewer template and it’s really nice to have all Server/client option alredy setup to work on LAN.

Now i’m trying to achieve some kind of interaction between the pawn in game.
I’d like (has a host / server ) to have the ability to change the name or other variables of the specific Client /Pawn.

I can get the results using “Get actor of all class” but i need a more specific and correct way to cast to a specifc Pawn.
I need to set those value outside my BP_VRPawn, like in the game instance, and call the value from there? Can I set a key directly in the BP_VRPawn and multicast from there?