Setting perspective in TGeo Object?

Hi,

I have simple script drawing two TGeoBoxes (see attachment).

1st question:
When I use the Draw("ogl") method the I see the fixed camera position looking along the x-axis. How can I change the perspective? I would like to look from one corner on the objects.

2nd question:
Is there a way to hide the menu on the left? I would like to only show the GL-picture

3rd question:
How can rotate one of the two TGeoBoxes?

Thank you very much

Georg