Water in general?

Is it at all possible to make water in FSX, I don't mean terrain water but I mean like water in an elevated... thing.. Like a raised water tank, a reservoir or a thing with water in it haha
maybe a better question, is it at all possible to have motion textures? so simulate rippling water? I am attempting to make an aqueduct
Use a flatten first, then overlay the flatten with water.
But I wonder if, in the case of an aquaduct, the ground will not be raised as well because of the flatten.