If useful for your design workflow, you can ensure that changes to the source file are not accidentally applied to the derived part.
To sever the link between the derived part and the base part permanently, right-click the derived part in the Model browser, and then select Break Link with Base Component.
The program breaks the associative link. You cannot restore the link.
To suppress the association to the source file, right-click the derived part, and then select Suppress Link With Base Component.
To restore a suppressed link, right-click the derived part, and then select Unsuppress Link With Base Component.