Adding changing/moves to dinos

Hi i was wondering if anyone could help me add a spitting torpor attack to a dilo and tell me how to up the torpor they do? i would like to make a dilo kind of like the one from extinction core (only doing it for practice) i would really just like to know how to add new moves as i would like to make a dino over hull mod and i am very confused and need some help. ive been watching tuts like the ones from mystic academy and such but havent been able to find ones that are relevant to what im looking for. I’ve also tried just messing with things and managed to get the poision animation attached to the dilo but its in the ground by its feet and i have no idea how to attach it to the poison spitting socket i made so it comes from the mouth. please help