Hi Greg,

Would going into a quad window view be sufficient? Ctrl+alt+Q
That way one view is set to perspective and the others are always ortho.
You can use 0 on the keypad to switch between ortho and perspective.
Or you could just split one window if you are trying to save screen space.
You can use 1, 3, and 7 on the keypad to switch between the front, right and top views.
You can also hold down the Ctrl key in conjunction with the keypad to get the opposite view.

Or perhaps I have totally misunderstood.

Scott