Tim Hooper:
In the standard US version, I see just the one Junction in the libraries. I don't see an option for saving a custom Curtain Wall Junction (like you can for Frames, Panels and Caps). So I think there are two options: using GDL to write your own Junction library part (not easy), or using a separate Object on the Curtain Wall (not associated to the CW).
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David
