Change field properties in the property sheet

To edit the properties of the fill-in fields:

1. Double-click on a fill-in field to bring up its property sheet.
2. In the Define As drop-down list, change the data type to Decimal.
3. Change the field Width to 16.
4. Check the toggle boxes to make the field Enabled but Read-Only. These options provide a shadow box around each value but prevent the user from modifying the field value.
5. Click OK.
6. Repeat steps 1 through 5 for the other two fill-in fields.

The design window should look roughly like this when you are done: