How can I take a drawing or sketch from SW and combine it with a dwg file from the client? The client sent us a multiple page dwg file that we can view in eDrawings.  They want to see the plan view of our design in their native file so they can make adjustments to their master set.

I can save a dwg through SW, but I can't figure out how to drop it in their file.  More or less can't figure out how to combine the 2.  We currently do not have a 2D CAD program (similar to AutoCAD).  Is it something that has to be done through something like AutoCAD?

Thanks