At the Command prompt, imports data from DGN files. 
You can create a script using -DGNIMPORT to batch process importing of DGN files. 
 
The following prompts are displayed. 
- Filename for DGN Import
- Specifies the path and name of the DGN file to import. To avoid errors when entering a file name, it is recommended that you specify both the DGN file and path as follows:  
path\filename.dgn
 or  
“path\filename.dgn”
 If you enter a valid DGN file name without a file extension, the program adds the extension.  
- Name of model
- Specifies the name of the design model in the DGN file. - ?. Lists all design models. 
 
- Specify conversion units
- 
Specifies a drawing-units value for scaling the DGN file. Select the appropriate conversion units for the translation. The DGN seed file contains working units (imperial or metric) called master units and sub-units. One DGN unit is converted to either one master unit or one sub-unit in the DWG file.  - Master. Specifies that one master DGN drawing unit (such as feet) will convert to one master unit of the specified DWG file. 
- Sub. Specifies that one sub-unit in the DGN seed file (such as inches) will convert to one sub-unit of the specified DWG file. 
 
- Specify mapping setup
- 
Specifies how the selected design model properties will be translated, or mapped, to the target file.  - Mapping setup. Specifies the default mapping setup, which extracts data from the drawing being imported and applies an automatic mapping to layers, linetypes, lineweights, and colors. 
- ?. Prompts you to enter a filter (using * as a wildcard character) to display a list of available export mapping setups that match the filter.