CastPetAction(index [, "unit"])
Arguments:
index - Slot in your Pet-Skill-Book - Start top left with "1" and goes down the book with increasing number
unit = "target"
PetAttack()
No arguments, it just autoattacks your target
PetDismiss
No arguments, just dismissed your actual pet
PickupStablePet(index)
index - Slot in your pet list (0 = active pet; 1 = first slot in pet list)