Place one object on top of the other

Hi
I have a simple question that I have been trying to solve, I come from design software and I would like to know how I do to put one asset above another. Let’s say a lottie and on top of it a text or another lottie (trigger button) without the first lottie always covering it, I already tried to check the part of the NAVIGATOR, but I think that is not how the logic (layers top/bottom) of lowering the segment or container thought