It would be nice to have classes in VectorWorks that have the same properties as classes in object oriented programing languages, I mean, to be able to extend a class into a sub-class and have heritage. This way if I change something in the super class, all the sub-classes will get the change too. For example, If I create a class called Concrete, and then I extend this class to a class called Beam, and another called Column, etc, this two sub-classes extends concrete, that means they get the same attributes from the concrete class , plus new ones defined by their own. In this scenario , if I change something in Concrete, the two sub-classes would be affected by this changes unless specifically override in a sub-class.