maxFrequency(int val)

Sets maximum number of instances of an effect

maxFrequency() indicates that there should be at most val copies of the file running at a time. It's used in many of Homeworld's effects to limit the amount of effects flying around in a major battle. It's been quite a while since Homeworld came out, and today's computers can handle quite a bit more than they could in 1999, so this command isn't as important anymore.