I am not sure there is a clear axis definition in ZBrush so setting specific values as being "front" " top" etc. is likely to be wrong nine times out of ten -- apart from that I feel bad messing around with Sven's Code..

I would recommend building an own interface menu with the elements from the Zapplink Properties under Document. They let you define your own front/top/etc. views. -- unfortunately those aren't saved as part of the project but better than nothing.

I was thinking about adding a save/load to the ModleView thing though since currently the data ends up in one common file shared across projects.