Survey Features defined for ORD

We are setting up 2019 Release 2 Update 7, Everything I have found about moving to the OpenRoads technology seems to center on SS4 and exporting an XML from your SMD and then importing that into SS4. The Survey Feature in ORD seems to have 4 properties. A terrain model attribute, which is pretty self explanatory. Then it has a Zone, an Alpha Code, and a Numeric Code. When I hit F1 for help on these items, the help is simply not good. Where can I get some information on setting these up? My best guess is the the Numeric Code is the old feature code, for instance, for us, a control point is entered into the data collector as 115. Is this the Numeric Code then? Thanks. .