Niagara Fluids

Hi there, I try to make a shallow water (lake) and an actor who will move through this lake creating small waves. I try to use Niagara Fluids for this, especially template “Grid 2D SW particle collisions”. But I can’t get rid of standard ball moving back and forth through the lake and replace it with my actor (actually once I disable it in a blueprint my actor cant interact with water). Also I can’t see the option to change the water color. Please advise.