Is it possible to edit spells?

[Puce Moose]

I started poking through the editor today, and couldn't find an option to edit spells. If the editor can't edit spells, is there a way to do it manually? I've been peeking in inside various .kfs files trying to find the files that control trap behavior. I'd love to edit traps to make them a bit more potent, and possibly add some additional effects.

If anyone knows where to find such information I'd appreciate it. In addition, if I do find the appropriate files, where do I need to save the new files? Do they have to be packed back into the original compressed .kfs archive, or do I need to just stick them in the data/mods folder?

Thanks!