spell mod

HI, im trrying to make a mod that adds a new tier of spells -- a new row of shapeshifter forms but i've run into a problem.

The first problem im having is that i want this new form to have more than 3 abilities but i can't find any way to add more than 3, the shapechange.xls file only supports 3 and adding additional collums doesn't work. additionaly i can't find any reference to the abilities that the forms receive to the 2da that gives them these abilities in the shapechange script.

any help would be greatly apreciated,

etfeet