Altering Record Lengths in Variable Length Files (Record Format View)
 To alter the record length of records added using the Insert, Add, Append and Copy functions:
1.  Confirm that the Record Length field located below the toolbar is enabled. If it is disabled, the record length for this record cannot be changed.  If the field is enabled, click on it.
2. Change the record length and press Enter.
Valid values for the record length range from 1 to the maximum record length. The maximum record length was specified in the Record Length field in the Data File Setup dialog box when the environment was initially set up.