Hello eduardoll,

Entities and Attributes would be shown between parentheses if ER Model type is set as [Physical Model] mode and they only have Logical Names.

For example, when you create an Entity in [Physical Model] mode, the Entity has both Logical Name and Physical Name. However when you create an Entity in [Logical Model] mode, it would have only Logical Name and Physical Name is blank. So if you switch the Model Type to Physical Model, the Entity name will be shown in the parentheses.

So before you edit Entities and Attributes, please make sure that you have a right mode on, Logical Model or Physical Model for your Diagram.

There are several ways to do so.

1) From ER Diagram's Pop-up menu













2) From ER Diagram's Property View








3) From ER Model's Pop-up menu in the Structure Tree








4) Set default in the System Properties (You have to re-open ER diagrams after you set it in the System Properties)










Quote:
Switching the model type to [Physical Model] from ER Model's Pop-up menu in the Structure Tree as 3) shown above may solve this problem if you are unable to change the Physical Name in the Structure Tree view.

If you are still unable to get it work, please let me know

Best regards,
Sato