Mirror zoom magnification between adjacent windows? I have two adjacent viewports, one in Front Ortho, the other in Right Ortho, so I can edit the same model from the front and side.  Is there any way to lock/mirror/match the magnification between the two, so that if I zoom in/out in one, the other zooms in/out to the same degree also?
You can use Quad View for that. 
Set up those 3 views so each of them is different (top, side and front). Then turn on its Lock and Box features :



You can zoom and grab those views simultaneously: