I am using a Main Round duct that i need to tap an oval duct into.  Is there a CID for a shoe or conical saddle for oval into round duct?  Is it possible to get you all to create a block for that if there is a CID for it?  Also what about adding a manual damper on the ovals?  Is there a way to add that all to be used in Revit?  This is all in Fabrication MEP and Revit 2018.