Spell Help Plz

I am trying to use storm, earth and fire of the pandaren brewmaster on a unit which is a marine. How can i change the models coming out after the spell to others than pandaren elemental? :bgrun:

In Object Editor go:

Abilities > neutral enemy > Heroes |> Storm-Earth-fire

Now its just the first entry (DataA1), alter the units to whatever the hell snots out.

Greets