I am working in Revit Structure 2009. I had a flat roof consisting of joist beam systems bearing on steel beams on columns. Now I need to change the flat structure to be sloped. I went and added a reference plane for the slope I want, but when I select the beam system it does not give me the option to set the work plane to the new reference plane. I can draw a new beam system and attach it to the reference plane no problem. Is there a way around this??

Also, all the beams and cols need to move down also due to the new slope. Is it possible to attach them to the reference plane since they are not actually sloped. It would suck to have to create new levels for each side of each roof.

Thanks in advance.