that's just hammer being retarded. don't believe everything hammer tells you. you know the input exists, use it, compile and see what happens. the more red text the better
Ya I tested them yesterday, they work just fine as far as I could see (the HUD Text every time you send a minor AddTime is pretty silly but at least it doesn't play a VO line)
To explain what's going on, Hammer doesn't automatically determine what is available for entities by reading the game code. It has a definition file it reads from and valve updates the SDK infrequently.
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