Robert, Thanks for that.....I am already doing a similar thing Tried using custom linetypes but they do not get exported when sending out to Autocad The current plan is to do exactly what you describe and I am going create a lisp routine to automate the process. Do you get overlapping/broken lines for the walls on the floor plans, even worse on exported elevations.
I am using X9 and having been exporting floor plans into Autocad for various purposes. I would like to be able to set the layer that the wall lines will be on once exported. At the moment they go onto separate layers for each wall type and layer of that wall. I would like to have all the framing for all wall types on one layer, drywall on another, etc