I apologize in advance for the most basic of questions but here goes;  I've searched and searched and I cannot find the information.  How do I get the Round Manufactured duct to appear in my libraries in both MEP and CAM Duct?  I have Rectangular, Round Bought-out, etc.  I have no manufactured round duct tab however.  I have found it in my "Item Folders" in the Service Template.  What am I missing?