Parse-Iterate through a 3D SceneObjectList

It seems there is no way to iterate through a 3D SceneObjectList unless one knows the Object name by means of .getByName(Name) (similarly with Index or ID).

Has anyone a workaround? I have seen this property for example: "objectID, integer, An unsigned 32-bit value that uniquely identifies the SceneObject. This property can be assigned, but does not have a default value (it always returns 0)."

If I were able to assign an ID to each object recursively then I could retrieve them by ID. However, I don't see how to assign an ID recusiverly...

Have you got other ideas?

Thanks