I was simply offering an alternative solution that had not been suggested yet.
It is fast, simple, and a very useful tool for a new user to know about.
Creating a seperate file of any type and configuring it for import to AutoCAD is not nearly as fast as Copy and Paste, or Drag-n-Drop,
and you don't need to know anything at all about how to set up the .dwg translator.
There are several advantaged to using the Copy method.
One of which is that it will open up the 3D Copy Options window so you can control what you want to see, how you want to show it, and get rid of the redundant lines before you add it to the AutoCAD drawing.
How is creating another seperate file for import better or more useful than to just drag-n-drop it, or Paste it into AutoCAD?
There may be any number of reasons why he wanted to use the lines showing up in his 3D view of the roof rather than the lines showing up in his roof plan.
Also, perhaps he didn't want to take the time to tweak his roof plan to look as he wants it to show up in AutoCAD.
Orthodoxy with ArchiCAD modeling is seldom implemented to its
fullest potential because in reality, it is seldom useful or necessary.
Perhaps the new user has already discovered this and was looking for a short cut.
There is never only one way to skin a cat. Especially with ArchiCAD.
ArchiCAD 25 7000 USA - Windows 10 Pro 64x - Dell 7720 64 GB 2400MHz ECC - Xeon E3 1535M v6 4.20GHz - (2) 1TB M.2 PCIe Class 50 SSD's - 17.3" UHD IPS (3840x2160) - Nvidia Quadro P5000 16GB GDDR5 - Maxwell Studio/Render 5.2.1.49- Multilight 2 - Adobe Acrobat Pro - ArchiCAD 6 -25