... neededCreate a new classCreate a new classCreate new attributes, derive a new child class, or create an auxiliary classCreate new attributes, derive a new child class, or create an auxiliary classCreate ... classCreate auxiliary classCreate auxiliary classDeactivate existing class or attributeDeactivate existing class or attribute Because there are more than 140 classes and more than 850 attributes ... installation. ! You cannot deactivate attributes that are in use by a Class Schema object, or any objects of that class with values in that attribute. ! When a class or attribute is deactivated,...