Working for local government and calculating parcel Boundaries, our department occasionally use a more historical Deed description of Chains & Links for a unit of measurements. Again.. ArcMap using the traverse tool allowed us to put a CH after the distance and ARCMAP would use this as a Chain & link unit of measurement and calculate the distance in chains and links. example: 10.51CH = 660.34 FT, Appears GISPRO does not have this option or capability.