If you have added a property through USRPROPS.TXT, added information for that property in the project encyclopedia, and then decide to delete that property and all associated information, you can do so through careful use of the Dictionary > Import Definitions command.
1 Export the definition in CSV format to a file.
2 Open the file in an editor that recognizes CSV format (for example, Microsoft Excel) or a text editor (for example, Notepad).
3 Delete the column with the unwanted information.
4 Re-import the CSV file using the delete all fields then add new data option.