For Swoof - Scripting Directions in Description :

Sliding Door - Yellow Bar = Replace with invisible plate that spans from yellow bar to door, that, once stepped on, will slide the doors. A second after stepping off the invisible plate, the doors will slide back. Red Bars = The distance each door will slide to - NOTE, DO NOT LET THE DOORS SLIDE INTO THE RED BARS, ONLY TOUCHING THEM. Detection Camera = Contains a small red sphere with 0.75 transparency. For however long the door is open, the red sphere will have a transparency of 0, then, go back to 0.75.