I know it isn't the old system but will this help?
There isn't really a move East, West, North or South, it's window up, down, left, and right.
All editors now move with A S D W Q Z and movement is relative to the view window.
S - zoom Away from the object
W - zoom Nearer the object
Q - move toward top (objects moves toward the bottom of the window)
Z - move toward bottom (object moves toward the top of the window)
A - move left of the object
D - move right of the object
Rotate the Point of View direction with the right mouse button
Vary the Speed of movement with the mouse wheel.
Maybe for the skin viewer (and the object editor) it needs a rotate POV around center.
Such as Shift+key rotates around the center of the plane.
Edit:
Never mind about the OE.