One more question, how to modify the spell datas to negative values ? It seems the minimum value it accept is 0. (Eg. making an opposite version of brilliance aura that decrease mana regen of enemy.)
EDIT: Great ! thanx a lot (don't wanna start a new post)
Go to the file tab in world edit (top left of program screen ) and go to "Preferences". Then go to the field that allows negative values. Check/Uncheck that box.