You can PAN specific distances with the View-->Pan-->Point command. (Or with "-P (note the dash) at the command line.) This command asks you to pick two points, the first of which must be selected with the mouse. Entering the second point at the command line (either in the "#,#" format or with polar or ortho tracking) moves the drawing by that amount. Selecting a second point with the mouse moves the view from the location of the first point to the location of the second point.