Configure the global default settings of the JPA diagram editor
Select General -> Editors -> JPA Diagram Editor in the properties tree.
Specify the JPA diagram editor settings. To restore the global predefined values, choose Restore Defaults.
Choose Apply, then choose OK.
Configure the JPA diagram editor per project
In the context menu of the project in the Project Explorer, choose Properties.
Select JPA -> JPA Diagram Editor .
Specify the JPA diagram editor settings. To restore the global default settings, choose Restore Defaults.
Choose Apply, then choose OK.