### Adding an Attribute

You add attributes to classes. This screen displays available classes.

1. Select the class you want to add an attribute to, then click OK.

   The Available Optional Attributes list appears.

2. Select the attributes in the left text box that you want to add, and then click the right-arrow to populate the Add These Optional Attributes text box. (Double-clicking a single attribute also works.)

   The selected attributes appear in the Add These Optional Attributes text box. The Existing Attributes text box displays the attributes already belonging to the selected class.

3. Click OK or Repeat Task.

   The attributes are permanently assigned to the specified class.