Restoring a data field you accidentally deleted
It's simple to restore data fields and columns -- and text fields -- to custom forms. All of the data fields that were available in the original version of that form remain available for use through the Select from List window. You can restore a deleted field by simply selecting it from the list. (To add data fields to a form)
If necessary, you can restore an entire form to its original version simply by choosing the original form template from the Selected Form list in the Forms Selection window. To make certain that a field remains in your custom form template, be sure to save the custom layout under a new name when you have finished designing it.