I know how to annotate a profile with the existing and proposed grades at the bottom of the profile grid, but instead of showing the proposed grade, is there a way to annotate the bottom of the grid with the difference between the two grades? See attached image. For example, at Station 300+00, instead of showing "PG 18.00" as the proposed grade elevation, is it possible to just show "-0.80" as the difference between the existing and proposed grades?