Window with a list of records, and the detail of the highlighted line showing with editable fields.
Maintenance > User Lists > Group 1 > Customer Territories
COPY methods from this window into WIP (Work in Progress) window.
Before Copy, rename duplicate methods with a DF suffix.
Copy method lines ABOVE the existing lines, and comment out the old DF lines
File Class Names will need a search and Replace. Use whole words only and case sensitive.
Possible some should not be replaced.
Non-variables, such as Field Object Names, should be searched and renamed as you come across them.
Look in the field $event methods for changes to validation if needed.
In the Variables Pane Right click to Remove Unused Vars to see what you missed.