Locate the record you wish to edit. You can use the Scan or Keys options as described in Locating and Viewing Records
Select the Edit option. The cursor moves to the first non-primary key field
Use the cursor keys to move between the fields
Edit the fields. <Ctrl+P> displays the valid range for numbers, dates, times and Yes/no fields. <Insert> and <Del> reset the value to the default for the field (as set up with the Database Creation/changes utility)
Press <Enter> (or <Tab> depending on your choice of keying convention) to confirm the changes.