How do you add spells from a trigger to a spell book?

[Don0ndrew]

How do you add spells from a trigger to a spell book? I really need help with this so if you know how please help me out!!

 

[Teh_Ephy]

Well you could have multiple spell book spells and then have triggers take one away and then add a different one but that could mean a lot of custom spells.

Edit:If you mean adding a spell that runs on triggers to a spellbook, just stick the spell in and it should work fine.