The merge utility combines two elements, or files by reviewing the difference between the two items and selecting which variant is included in the final merged item.
You can merge the differences between elements and files into a third output file.
To merge differences, perform the following:
Open a System Modeler project in Visual Studio.
Select the model or element in the Class View.
On the Tools menu, select System Modeler Tools, and then click Merge Differences menu item to open the Merge Elements/Files Wizard.