Navigating through cables

The idea is simple, by moving the cursor over a cable in a node editor and holding control (or any other key), overlay an arrow with the direction of the neighboring node that you want to center. By clicking on the arrow, center the view on the node at the other end of the cable.

If the cursor is over one end of the wire, drive to the other end. If the cursor is in the middle of a cable, allow the end to be centered to be chosen.