No luck so far after an hour of trying various combinations of your suggestion. I did see the "rotate after placement", and it rotated it along the wrong axis. Now it's sitting above the roof at a goofy angle like a ballerina on one toe. That's the only kind of rotation I can get. Note that it loads with the axis of the panel N-S, rather than E-W, but I see nowhere to change that in properties.
I know that this object (solar panel) needs to be associated with some point (or line) on the drawing, otherwise Revit doesn't know where to put it. Once it is associate with a line, however, it sticks to it and won't rotate. Perhaps I could "host" it to a point (ie, intersection of three lines intersecting in x,y,z)?
I even created a new solar panel and loaded it into the project, because when editing the existing one, it shows a slab underneath the panel in edit mode. I thought maybe the "slab" is interfering with placement. My new panel is invisible however (lets me place it, but it's invisible!).
Really stuck on this, I need a new strategy. Why do simple actions have to be so impossibly hard to figure out. What could be simpler than just "standing a component up" !? Sorry, but very frustrated... Thanks for your help so far!!
