Before reading this topic, you would need to know the concept of classes and objects

You can create, edit, and organize objects of your project in the Class Pane. It is not possible to rename or delete the root class of the class tree. It is always called Project.

The mechanics of creating class

To create a class:

1. In the Class Pane, select Project.
2. Right click on Project, and click Add class.

To create a subclass:

1. In the Class Pane, select the class under which you want to create a sub class.
2. Right click on the class, and click Add class.