On the main menu, click Maintenance > User Defined > Extra Field Groups.
To select the extra field group to delete, click the blue margin cell next to it.
When the line is highlighted, press the [Delete] key on your keyboard.
If the extra field group is in use the following message appears to prevent the deletion.
5. If the system allows the deletion, the extra field group is deleted straight away.
6. If you have finished working on the Extra Field Groups window, click to save the changes and close window.