Names the new mapping setup, sets the mapping setup on which to start the new one, and indicates the mapping types to which you want the new style to apply.

The following options are displayed.
Sets a mapping setup to use as a basis for the new one. For the new mapping setup, you change only the properties that differ from the properties you start with.
Opens the Modify DGN Mapping Setup dialog box. Depending on the mapping type selected (Import or Export), the appropriate import/export dialog box is displayed.