When you first select Revit help menu, there is an image shown (see attached). This image shows a picture of a non-vertical curtain wall on the far right that is joined to two other vertical curtain walls at each end. Can anyone provide me with a tip as to how to re-create the curtain wall shown in this image? I have tried using wall by mass face, rotating the work plane and all my efforts have been unsuccessful. It would appear given this image that it is possible, I just need to figure out how.