For now I can use store point of view
Also another thing, still related to 3d view.
When in Aerial View, the center is always on the 1st level.
I made 3 levels, and it's always view the first one as the center.
It's difficult for me to view the 3rd level.
For 3 level still viewable, if someone made 10 level, I don't think aerial view can see the top level anymore.