I am constructing a tilt-wall building and have created my panels as masses.  I could not figure out any other way to add the correct reveals and joints.  The problem is that now that I add them to my project, the windows, doors and other elements that connect to them disappear.How can I turn the panels into wall elements to attach windows to?Thanks

There are other ways for constructing sloped walls - see e.g.:
http://www.cadforum.cz/cadforum_en/qaID.asp?tip=5337

I had the some problem
after creating mass choose the wall comand
then pick faces it would creat a wall
good luck

Don't use massing... go to mdelling and create, then choose in-place wall. the principles are the same as for massing, but revit will create the object as a wall and so can have openings, doors and windows inserted. Also it can then be scheduled etc.
 
Justin
 
www.revitup.co.za