I have 2 sets of models for the arches. The first is called 4 arches - where all 4 arches are treated as one element. Then I have Arch 1, Arch 2, Arch 3 and Arch 4. That way I can have each of the arches doing something completely different if I want. On the preview, I put the individual arches as close to the 4 arches and call it good.