There are 2 different things you might want to transport: the model or the application.
Transporting a model
Question: How can I transport a model from one Portal to the next?
To transport the model, use the export and import functionality of VC
Transporting an application
Question: How can I transport a Visual Composer application?
- To transport the compiled and deployed iView, use the regular Portal transport mechanisms.
- Compile the VC model with "Deploy Model with PAR" checkbox in compiler tab checked
- Create a transport package and add all objects in the model folder
- Make sure that you have Read access to the "Applications" folder. System Admin -> Permissions.