The ambient sound volume drives me crazy

So, I have 2 different levels, part of the same project, and in each one of them is 1 Ambient Volume. They even have different names but seem to be the same, because when I edit the volume in one level, it also changes in the other.

It’s annoying. I have 6 cues. I want to loop the first 3 in Level 1, and I want to loop the last 3 in Level 2.

How do I achieve that? Is there an easy way without too much fuss that can be solved within the ambient volume? It seems to be a very simple thing but I can’t figure it out.