Adding an Assembly Placeholder
Note: An assembly cannot be added to a system or inline analysis.
        - 
                From the Add System/Assembly dialog, activate the
                        Assembly radio button and click
                        Next.
                The Add Assembly dialog is displayed.
 - Activate the Specify data file later radio button and click Next.
 - Optional: To change the parent entity in which the new assembly will be stored, double-click the Parent collector and select an assembly or analysis from the Model Tree.
 - Specify a variable name for the assembly.
 - Specify a label for the assembly.
 - Assign a type for the assembly if necessary.
 - 
                Click OK to close the window or
                        Apply to continue creating entities. 
                The assembly is added to the model.
 - 
                To specify a
                    data/definition
                    file for an assembly placeholder, right-click on the placeholder in the Project Browser, click Select
                    Assembly, and define the assembly using the methods described
                    above.
                Note: The data and definition files can be respecified using the Reselect Assembly context menu option available in the Project Browser. This context menu also has an option to deselect an existing assembly to a placeholder.