A Special Kind of Case - Adding SLA to Spells Known

[chaoscowboy]

Hello folks! I've been working on a Thunderscape Campaign Setting homebrew file for my local game and have come across a bit of a snag. I'm quite new to this software, writing user files especially, and have no idea how to accomplish what I want.

Basically it is a trait that gives you either a 0 level spell at 3/day or a 1st level spell at 1/day. If you take a level in a spellcasting class that has that spell on its spell list, you add it to your spells known and lose the SLA.

I've got the SLA working properly with the dropdown and everything, but I have no idea how to get it to add to spells known.