About Settings AutoCAD Civil 3D has drawing, object, and command settings. All three levels of settings in AutoCAD Civil 3D are saved with the drawing, and they can be saved to a drawing template.
About Units and Zone Settings
Using the Units and Zone tab of the Drawing Settings dialog box, you can select linear and angular units, a coordinate system, and scale for the drawing.
About Transformation Settings
Using the Transformation tab of the Drawing Settings dialog box, you can relate the local northing and local easting coordinates of your drawing to the grid northing and grid easting coordinates for the current zone.