### Add Optional Attributes

Available Attributes
These are the attributes you can add to the class. Double-click an attribute to add it.

Add These Attributes
These are the attributes you have selected to add. Double-click an attribute to remove it from the list.

Hint: You can modify an existing class by using this screen to add to the Current Attributes list. You can remove only attributes you have added prior to clicking OK. You cannot remove any attribute that has been previously added and saved.