Slamming-Shut Stone Temple Doors

[SgtGodfear]

I would love to see some triggerable doors that slam shut downward... For example, an adventure-themed stone temple door (similar to the existing one that opens upward slowly), but that drops shut quickly with a dust effect. This would be great for a ride where you want to have doors that begin in an open position, but that slam shut quickly behind the coaster as it enters a room or leaves a building... or an effect where a ride car enters a room and triggers all the doors to close, giving the sensation of being trapped.