How to make an object visible via triggerbox?

I’m making a first person shooting game in UE4. I have a target and the object of the game is to hit bullseye on that target – once bullseye is hit, I want a matinee/lift to appear to bring the player to the next level. My issue is that I can’t find a way to make the matinee visible. I already created it, and it’s path to the next level. I need to find a way to change the visibility, possibly via a trigger box on the bullseye. Any suggestions?