Use the DXF Import form to select the grid system; specify the components with possible assignments to be included in or excluded from the import; and the story level of the entities to be imported.
Use the Coord drop-down list, choose the coordinate system for importing the file. Also select the units of the DXF file from the DXF File Units drop-down list.
Select Layers for Grids display area. Click on an item in this display list to select it. Use the Shift and Ctrl keys on the keyboard to make multiple selections.
Select Blocks display area. Click on an item in this list to select it for import. Use the Shift and Ctrl keys on the keyboard to make multiple selections.
Global Up Direction drop-down list. Use this drop-down list to specify the coordinate that indicates the "up" direction.
Ignore Lines Shorter Than edit box. As the name indicates, specify that lines of a specified length be ignored.
Access the DXF Import form for importing .DXF/.DWG Architectural Grids as follows:
Click the File menu > Import > .DXF/.DWG Architectural Grids command to access the .DXF/.DWG Import form
Use the form to locate the filename/path of the .DXF file to be imported.
Highlight the filename and double click it or click the Open button to access the DXF Import form.