Mirror Referenced Project's Model Element

1. Right click on Model Explorer and select Manage Dependent Project.
   
2. The Manage Dependent Projects dialog will be shown. This allows you to add and remove project file being referenced by your working project.
   
3. Press Add button, and select the reference project from the file chooser.
   
4. Press Close button in Manage Dependent Projects dialog.
5. Once reference project has been defined, a combo box will be shown in Model Explorer. You can switch the Model Explorer between your working project and the referenced project through this combo box.
   
6. You can drag out models from referenced project to your working diagram, and connect them with your current projects.
   
7. When using referenced class model in sequence diagram, operations from the referenced classifier will also available when creating operations.
   
8. The list of referenced models can be found by selecting List Referenced Model Element/Shape in the combo box.
   
   The advantage is using referenced model is your working project not necessary to store any information about the referenced model. This helps to reduce the size of the project. But since the referenced model is read only from its source project, one of the limitation is you cannot create child on it. To overcome this problem, you can Create Mirror Model Element to your working project. The mirrored model element is also in read only on its properties, but compare to models in reference project, you can add child model to it.
9. You can create mirror model element by right click on the model in referenced project, and select Create Mirror Model Element.
   
10. Name of the mirrored element will be updated automatically when it is changed in its source project.
    

Resources

1. ShapeEditor.vpp
2. shapes.vpp