Material Change with Box Collision

I’m working on an auto running game, and I’ve run into an issue I can’t figure out. I have a switch on the wall that will spawn at a random point along the z axis in a bounding box, and in another blueprint I have a box collision set to spawn at the same point. This box collision activates a bridge to extend. I was wondering if there was a way to have this box collision also change the material on the switch, so it appears to go from an off to an on position?

You could create a material instance for the switch and set the parameters when you collide with the box.