Orbit & Scenes Basic Questions - Reality Composer

Hi,


I have started using RC (full release version) and want to add a plane or flock of birds to fly around my AR building.
1. When using the Orbit tool it is automatically se to dip down steeply.
There is a handle to change one axis, but there is no handle to level out the circle/path to fly horizonaly?


2. Am I right in thinking that when you export the full project (not just current scene), the only way to see all scenes is to build the project into an app?

The reason for asking, I created a 3 scenes, all using the same image marker, with an AR house placed on that marker in once scene, set when tapped to move to a different scene to show the ground floor only etc etc.
When I open the exported file on my iPhone X running iOS13 (when not crashing) it just shows scene one?
Any help appreciated 🙂