The most major thing to note is that each option will have a "requires option" field. This is a recursive requirement scheme. What happens is most of the options will require "all", and some will require things like "target" or "npc". If you try to turn on an option that requires something else, you will be told of the requirement -- so if you /mapfilter npc and the "all" option is off, it will say you need to turn all on.
I'm also adding a few picky things people whined about
