10.3 Importing available/restricted area range from DWG files
In the DWG file, create a new layer and use the above origin coordinates as a point to draw a rectangle:
1) Input command "RECTANGLE";
2) Input such as @ 25725.190423814146946440920.596846763, as the point in the upper left corner of the rectangle. After pressing enter, select any point as the point in the lower right corner. Save the DWG file.
3) Import DWG into SU, use SU's own moving tool to move the imported DWG group to the origin of SU, with the point in the upper left corner of the rectangle as the base point.