use a blackout mod

Edit: use a mod that is like a blackout mod

You can use ent_fire and go through a-b and they'll look like a-light1 and so on, what you'll want to do is just run ent_fire a-light1 dont worry about the lettered ones, and if you'd like to turn a group of lights back on just type in "ent_fire *light* turnon", the lettered ones are for the power off sequence, they just run the light flickering, also using "turnoff" will delete the light prop but not the source :)

its more like a-c, each correlating to a floor

actually just figured out you can use a wildcard, just throw in ent_fire *-light* in console and it'll turn all the lights off, and to turn em back on just add turnon at the end

use toggle instead of turnon and turnoff, as they do some weird things to the props

hella, thanks!