Uploaded by youtube user BIMcoach:
“When working with Autodesk Navisworks you may run into mapping errors or omissions. This is due to the limitations of property mapping in Navisworks 2014. This video provides a solution to workaround this issue by creating a new property mapping definition.”

Also, remember this if you want to import MasterFormat catalog: at the very end of the Quantification Workbook tab there’s the import/export catalog icon (on top).

Revit-exportlayers-ifc2x3-forCOBie.txt: This is an updated export layers
table file. It is intended primarily for COBie, but can be used for any
export. It would replace your existing export layers table file.


IFC for Revit / Wiki / Notes on support for Extended FMHandOverView