Scaling

Sets the scale to use: Automatic, using the scale defined in the AutoCAD file, English, using inches, or Metric, using millimeters. The default is Automatic.

Color

Lets you import the drawing with Normal colors, which maps the AutoCAD colors as closely as possible to the current Designer palette, gray scale, or black and white.

External References

Ignores or selects the path for AutoCAD files that are referenced by the file you are importing. If you select a path, all referenced files are also imported, plus any files they reference. The default is to ignore external references.