Sure.
trigger1=false
when using the word trigger1 in the condition line of that trigger.
when you want it activated, use
trigger1=true
if you want the trigger to be activated if west is in it's radius and trigger1 is true you put in the condition
trigger1 and this
well anyways.. I could explain these to you the whole day, but the easiest way you'll learn is if you head to the editors depot and grab some tutorials from there