Can I set up Wall End Panels in the library so that their height off the bench is always a fixed distance lower than that of the door cupboards? We have the doors stick past the carcass bottom 18mm in order to cover the bottom panel of the overhead, so I always need to adjust the height of the end panels to line up. 

Is it possible at all to use a formula in the Library like HeightOffBench - 18 for the panels, or is there another solution?

Just trying to streamline my workflow as much as possible and cut out room for potential errors.

-Byron

edit: I realize I can just oversize the height, but that doesn't change the way it shows up on the drawings, so it doesn't appear correct when dealing with clients