Hi Junying Chen,
What template are you using when you create a new project in ProSteel. Are you using the default AutoCAD or one of the template files setup to work with ProSteel. I had no problem importing your model. I did not need to map any shapes or materials. It was all imported automatically.
What template are you using when you create a new project in ProSteel. Are you using the default AutoCAD or one of the template files setup to work with ProSteel. I had no problem importing your model. I did not need to map any shapes or materials. It was all imported automatically.