On the Tools menu, click Object Designer.

Object Designer appears.

Click Table to view the list of tables.

Select a table and then click Design.

The table opens in Table Designer.

Click View and then click Keys.

The Keys window opens.

Place the cursor on the line defining the key for which you want to view or modify properties.

Click View and then click Properties.

The Properties window appears.

To modify a property value, enter the new value in the Properties window. After entering the new value, update the property by pressing ENTER or clicking outside of the property.