Not that I know of, but the way I usually do stuff like that is snap a cube's corner to a vertice I'm going to move, then translate it over 2 inches or however far I want. I then select all the vertices I want, change the pivot point to the vertice I snapped the cube to, then snap to the corner of the box. Sort of complex I know, but if you know what you're doing it's really fast and easy.