Perspective View altered after Make2D

Sorry for the newbie question. I have just starte to use Rhino and I have played a bit with SECTIONS and CLIPPING PLANES. I have activated some safe areas on the Perspective View saving a View which I cannot get rid of and now I am stuck with 3 rectangles (which I guess delimit the safe area for a make2D command) one inside the other in the Perspective View. How do I get rid of them and get back back to normal viewing setting for the Perspective Window?

Thanks for help,

Paolo

Hi Paolo -

You have activated the “Safe Frame” feature. It is completely unrelated to the Make2D command. You can turn it off from the Properties panel.
-wim

Thank you very much!