Well, again I don´t know if this issue has been treated yet, but I would like to ask if is possible to change the location of the viewports.
I´d like to put the Top view in the bottom left corner, and the Front view over that. The same with the Right and 3D viewports.
The "european" system is the opposite to the "american" system (I learned in those way a thousand of years ago)

You can see this link. It´s in spanish, but the images are enlightening

http://www.gig.etsii.upm.es/gigcom/dibujo%20industrial%20i/dibujo_tecnico/Sist_europeo.htm