I’d originally had something nicer in mind that includes cool stuff like a code lock for the building exit door and a computer terminal that displays the code once it’s activated. Since some of these things require stuff that’s not included with the beginner asset pack, I decided to go for a simpler design and use my original plan for a future version.
That’s a lovely office space 
Looks like you will have to make sure doors are closing fast enough to avoid unwanted escapees.