I have been asked if we could put wall cabinet face-frame dimension on our elevation; but they want them to always be based off the top of the wall.  I know I could reference the global wall height but that doesn't mean that it will always be the same as the actual wall height.  So, my question is; is there a background hidden value that we can use to reference the "link wall height" so we are referencing the wall the cabinet is drawn on?

One thing I found in the component library at least is that the G!Wall_Height isn't the same as the "Wall Setup" wall height.  That makes this a little more difficult and why we would want to link to the "linked wall".