Holt winter's additive equation in APO (5.0)

Dear All,

Is Holt winter's additive strategy exist in APO? There are two forecast strategies (40, 41) for trend seasonal models and both use winter's multiplicative equation.

I found following link which says that Winter's additive equation is available.

http://help.sap.com/saphelp_scm50/helpdata/en/a4/42e03fc2269615e10000000a155106/frameset.htm

Can someone help me with this?