It seems like I need the roof plan to show up in lots of places. Even the foundation plan sometimes to help me illustrate the load points. To make a quick set of roof lines to be used anywhere, view the roof from the top using the Internal 3D Engine so you can see it in Hidden Line mode then using the marquee tool (pick the last mode on the right of the marquee pop-up) and click Edit-Copy and then Past it into your plan. Group the lines and use your layers to turn it on and off.
I do this because I usually want the roof line types to be different for the various places that it shows up. Also, it is easy to resize it to the site plan scale or other.
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