In the Entity Object Editor, you can modify these aspects of an entity object:
Creating, Removing, and Ordering Entity Attributes
Specifying Entity Attribute Settings
Generating Java Source Files and Methods for Entity Objects
In addition, you can specify these additional qualities, which you could not specify while creating the entity object with the Entity Object Editor:
Adding, Editing, and Removing Entity Validation Rules
Publishing Entity Events
Subscribing to Entity Events
Defining Business Component Properties and Values