Horizon Worlds - making a wall/door invisible to certain players but visible to the rest

Wondering if anyone has any solutions. I’ve racked my brain on this, and have multiple triggers/scripts floating above my level from prior attempts.

Here’s what I need. I’m creating a haunted maze, and I have certain characters situated in “scare pockets”, which are rooms connected by a door to a hallway through which I want players to walk down. The scare actors in the scare pockets will jump out through the doors to scare the other players as they walk down the hallway.  But I need the scare actors to know when to jump out. So I’ve tried all sorts of combinations of using triggers to make the door, and the wall next to the door, not visible to the scare actors in the scare pockets.  That way they can see the players coming and they can jump out at the right time. But the simpler ways make the door and adjoining wall also invisible to the players in the hallway, which doesn’t help. I’ve tried the “set who X is visible to” (or whatever it’s called) and used a player list to list everyone in the world and made the door and wall visible to them but not to the scare actor in the scare pocket. The problem is, the wall and door have to be set to be visible for this to work, and when my trigger makes them invisible to the actor in the scare pocket, they become invisible to everyone.

Can anyone think of a way to enable me to make a door and adjoining wall invisible just to one player upon demand, e.g., by entering a trigger, grabbing an object, or pushing a button?

Thanks for any thoughts!