How to make a SetupGate?

i was following the developer wiki for payload maps but im stuck on round timer, it provides no steps for making a SetupGate.

 

it's just a set of func_doors that start closed and open through the OnSetupFinished output. If you want the specific orange setup doors seen in maps, it's several door_grate related props.
The door itself is made up of two func_doors, a lower and an upper one, that each has one of the door_grate sides parented to it. The doors are set to 'don't render' so that they won't appear ingame. If you're stuck with making it, then you can always open up a decompiled valve VMF to see the logic and prop setup used for them

 

The ABS pack has setup gates, too, if you're feeling lazy. (like me)

 

I already have doors placed. I thought a setupgate was a special logic entity or something. Instead of setupgate I should just put in all the names of the doors?

 

Or just name the doors 'setupgate', yeah

 

Or have the prefix "Setupgate", and address it with setupgate_*. That will address all objects with "Setupgate" in the name. It took me way too long to discover that, really.

I assume that's what you meant, unless you're referring to naming all the gates that, because parenting the props would then be a pain. (I think. I'm not an expert.)