You can delete fields that you have added by using the Delete Field command from the Groups submenu under the Library menu.

To delete a field or fields from the current group

§    Choose Delete Field from the Groups submenu under the Library menu

§    Click in the name of the field to be removed

If you wish to remove more than one field, shift click on the additional field names

§    Click the OK button

WARNING: Do NOT delete any of first eleven standard fields in a group as Multiframe uses them in its analysis.