How Does The Spellcraft System Work?

[RammaLammaDing]

Hi, i got this great idea for a map, being inspired after playing some Spellcraft. But now i got this problem that i have no idea how the spell learn triggers work in Spellcraft, you know where u pick up 3 items to create a spell. Ive got this idea that maybe by pushing 3 different buttons with a building i could add some kind of spell, based on the 3 buttons i chose, to some other unit. If anyone knows how to make this or anything like it, then please help! Thank you. (awesome smiley)