Is it possible to use SE Free 2D to draw over existing Autocad floor plans. I am an energy analyst and simulation program I use requires a cad "zoning" diagram to start the energy model. I am hoping SE 2D will allow the creation of a new layer for the zoning diagram. I would then save that layer as a separate DXF.
You can oprn the DXF file in 2D Drafting and create new layers in the draft file. You can then hide the original layers and then export the draft file back to a new DXF file. You cannot export only selected layers.