After you've displayed the record you want to modify, click in the field you want to change.
Delete the entry and type a new one, or edit the existing entry.
Click anywhere outside the field to save the changes. Alternatively, open the Records menu and choose Save Record.
In addition to entering data into a table using a form, you can also use a form to make changes to the data, just as you do in Datasheet view. Your changes to a field are saved when you move the insertion point out of that field.
Selecting an Entry
When you press Tab to move to a field, the entire entry is selected. You can start typing to replace the existing entry with a new entry.