Answer:
You can import a DXF file using the menu "File → Import". However, it is usually necessary to rework the file.
Elements can be set retroactively on the basis of the DXF template. This feature is available using the menu "Edit → Set Elements with DXF Template". The "Set Elements According to DXF Template" dialog box appears (see the image).
First, it is necessary to create center lines by clicking the opposite DXF contour lines. Then, use the "Set Elements" option to set the elements by clicking the center lines. For non-parallel contour lines, the elements must be set manually, as SHAPE‑THIN can only create elements and arcs from parallel lines.
The video recording of an info day shows the DXF import from minute 45:50 onward. You can find the video under Links below.
