Wwoody. The problem I believe is, chief does not yet support IFC model format. I am also very interested in something that would work because here in Kenya archicad has the biggest crowd and even most employers prefer the raw file in .pln format. If something could be done so that individual 3D layers and pieces are imported and exported in CA, that would be very helpful as I tend to lean more towards CA but the workflow between myself, my colleagues and other consultants is impossible. I have introduced many people to CA, I can attest to you that everybody liked it very much, especially on how easy it is to use, but all had one question they asked, "how compatible is it with Archicad and Revit?"