Answer:
The lines in a DXF file can be imported as lines or members. You can select the "Create Members" option in the "ASCII Format DXF (*.dxf)" tab of the import dialog box (Image 01).
When importing members, the names of layers are adopted as cross-section names, and the first material is assigned from among the predefined materials. If a cross-section from the Dlubal cross-section library and a material from the Dlubal material library by recognized from the layer name, they are adopted. The layer name must be specified in the format [Cross-Section Name]$[Material Name] (for example, IPE 300$Structural Steel S 235 JR).
The import of lines/members is shown in the video.