This is a feature of JBuilder Professional and Enterprise.
The Properties dialog box is where you set properties for the selected source file. To display this dialog box, right-click a source file in the project pane and choose Properties.
This page of the dialog box is where you enable the Open With Data Modeler command from the context menu.
Enables the Open With Data Modeler command for the right-click menu. This allows you to right-click a data module class file in the project pane and open it with the Data Modeler.