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To add a district to the zone, type in the District's SETUPENV code (SECTION=xxxxxxx code from OECN$SETUP.INI) or IRN, then click "Add".
If a district has more than one entry in the OECN$SETUP.INI file, it is important to use the SETUPENV code for which the OECN$DTA logical is defined to the appropriate district files.
For additional details on setting up a district, refer to /wiki/spaces/CTD/pages/623366
Removing a District
To remove a district, select the district and click "Remove".
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