Move definition of nodelist directory to the configuration file, using the keyword Directory in the new section Nodelist.
Rename bin/nl2ftndb to bin/ftnpldb-nodelist. Change how the -z FTN Zone number parameter is coded. Change the -n option to being the definition of an FTN Net number. Move the nodelist listing functionality from the bin/listftndb script to the bin/ftnpldb-nodelist script as the List command, and remove the file bin/listftndb.