The design parameter to be edited is selected from the Column drop-down list and the new value is entered into the Value box. The range of bore sizes that the value is applicable to is specified using the From Bore and To Bore drop-down lists.

When the Apply button is clicked, the list at the left of the form is updated with the new value. The changes will also be reflected in the relevant columns of the table in the Parameters tab. On returning to the Parameters tab, the changes made can be viewed together. If these are satisfactory, all the changes can be applied at once to the database by clicking on the Apply button.