Ranged mob use ranged item

I'm trying to make an ant that spits at you. But when i make it an ranged mob i can only specify the item texture it shoots with. Is there someway in mcreator 2020.2 to make the mob use the propeties of an ranged item ore something, because it seems wery weird when it sounds like it is arrows and it shoots super fast.

I've seen that i should be implemented i 2020.3, but i am making a mod 1.12.2!!