Add a System
Use the Systems tool to add systems and assemblies to the model.
- 
                From the Project Browser, right-click the container entity
                    to add the system to, and click Add > System/Assembly.
                The Add System/Assembly dialog is displayed.
 - 
                Activate the System radio button and click
                        Next.
                The Add System dialog is displayed.
 - Optional: To change the parent entity in which the new system will be stored, double-click the Parent collector and select a system from the Model Tree.
 - Specify a label and variable name.
 - Specify a definition name for the system.
 - 
                Click OK to close the window or
                        Apply to continue creating entities. 
                The system is added to the model.