Breaking External References in Creo 4.0 and Creo 5.0

This video cover how to break external references using tools in Creo 4.0 and Creo 5.0 None, Required and All dependents options for Add to Workspace https://www.ptc.com/en/support/article?n=CS111761&language=en&posno=1&q=%22Relation%20Reference%22&source=search