Breeding Pixelmon Plugin

Good night, I would like to know if anyone can do or if you already know any plugin that changes the breed system so that the egg comes with the average IV between the father and mother. For example : The father has 20 iv in attack and the mother 10 , the child would be born with 15 iv in atk . I would also like the parents to disappear and the player would only have the egg after the breed.