provided by Autodesk.
(sorry the videos below are temporarily out of order, please chech back later)
Single Model for Both Structural Analysis and Documentation
Bidirectional Associativity Between Model and Views
Import/Export in DWG/DXF/DGN/IFC and CIS/2 formats
Bidirectional Links with Analysis Packages
Structural Parametric Components
Interoperability with Revit Architecture