select multiple objects and rotate

dear vantage team
Can you please explain me the following:
Some time I select a group of objects , when I rotate them they rotate as a group, (meaning that the inner position of objects on a group does not change) I know this is happening when I select the whole vrscene that I have draged dropped in vantage is rotating as a group,
but hthen when i select objects of this dropped vrscene then they rotate somehow individually destroying their relative position between them.
Can you please explain me how can I always select as many objects in a scene as I want and rotate them as a group
thnaks

If there is a hierarchy and you rotate a parent object it rotates all the child objects with it. When you import a vrscene or other asset it creates a parent transform object that you can use to do that. If you select individual objects they rotate around their own pivot point.

Can you please make it so that we can select multiple objects in a scene and rotate them all together. maybe add one button that can do this.