He might have been that times IT Administrator? We've come a long way over these past 30 years, but think about it for a second, if you're an IT Administrator today handling all the office machines, you probably have the power to click 1 button to turn them all off? (Depending on the setup of course..) There's obviously more access rights involved today.
Doesn't answer "who" put the button in there, I'm just thinking out-loud! :)
Doesn't answer "who" put the button in there, I'm just thinking out-loud! :)