Change Multiple Materials with Blueprints


I have a scene with two couches ( see attached pic). Both couches have different materials. I want the user to change both materials of the seperate couches to different materials by pressing the C key.

I;ve managed to set up a blueprint where i can change the one couch to a different material by using the C key, ( Please see attached blueprint), but how do I change both couches to different materials when pressing C?

I am still learning Blueprints so my skill level is very low.

Any help would be great, thanks.