A little help would be appreciated:

I've modeled a 3D steel-only structure, and am interested in doing analysis for wind loads. The help files (and the older videos at ) suggest that I can just go to "Loads" -> "Special Loads" -> "Wind and Snow 2D/3D" to bring up a wizard, but that option is always grayed out for me. I've tried in several different RSA modes (building, 3D frame, etc), but can't access the tool.

I saw a post from several weeks ago on this forum in which someone suggested that the wind loads only worked for 2D structures, but the help documentation for the wind load tools says that you can generate 3D wind loads based on surfaces.

What am I missing?