Share Email Facebook Twitter LinkedIn To Insert a Content Part Reference (AutoCAD Mechanical Toolset) Click Content Editor tabTools panelPart Reference. Find In the drawing area, specify the location to place the part reference. Note: Balloon leaders point to the part reference location, by default Related Concepts About Adding BOM Specific Information (AutoCAD Mechanical Toolset) Related Tasks To Add a User Defined Column to a Family Table (AutoCAD Mechanical Toolset)To Map a Component Property to a Family Table Column (AutoCAD Mechanical Toolset) Related Reference Commands for Authoring, Publishing and Distributing Content Libraries (AutoCAD Mechanical Toolset)