looking for shared code for mapping bump command to keypad

I was wondering if anyone has posted previously or is using skill code that they can share here to map bump commands to the direction keys of the number pad in Virtuoso.  I am not sure I am even using the right terminology to search for what I want.

Basically I want to able to move my curser on screen one step size north, south, east, or west.  So when I am moving ot stretching an object Idon't have to use my mouse to move it, instead use my direction keys or any other keys I decide to map it to.  When you get to technologies that have step sizes of .001um it gets pretty annoying trying to move or stretch shapes and zooming in and out constanty to get things moved properly.  I end up spending about 70% ofmy time zooming in and out.  The other virtuoso users I work with don't have any solutions for it. The guys that I work with said that there used to be some code for it but it got lost at some point.  We use a different layout tool that has this feature and it would be nice to use the same thing in Virtuoso.