Spellbook Base ID

I noticed that spellbook got an
Data - Base Order ID spellbook
other then the normal
Text - Order String - Use/Turn On

If I change this (Base ID) can I use several spellbook abilities on the same unit?

Yes, this applies to any other ability that has this field, like charge gold & lumber and channel.

I didn't know that. It's good to know. :)

Nice! :D
now I'm gonna do wonders.