The if and if else statements

[T122002]

Not sure which page you were looking at, but they're located here: http://wiki.frictionalgames.com/hpl2/amn..._functions

I saw the site, but I couldn't find the functions.
Your Computer said this:
"Technically, you don't need if and else statements for that. Just have an interact callback for the key that adds a collision callback for leaving an area that then activates a monster."

Is there a specific function on how to do this? I mean, how would I set that up?