I changed this model to a pressure plate which you now press with the electricity. This will also change in the conveyor belt room.
This is the changed code which now works with the pressure plate so when it collides with electricity, the door will open rather than the player pressing the E button.
I made a new texture for the wall pressure plates as I want them to be different so the player can tell that you need to use your electricity on them.
Here it is in the game and underneath is it being pressed.
I made the pressure plates prefabs like the others, making it easier if I wanted to use them again.
Here I’ve made an empty game object respawn point above the conveyor belt and attached a script to the floor so once it touches it, it respawns at that point. This is to prevent the puzzle from becoming impossible due to the box not being on the pressure plate at the conveyor belt once its knocked off.
Here is the code for that respawn script where it just says, if the box hits the ground, move the box to the same position as the empty game object.