Attached Link: http://www.inagoni.com/comment.php?comment.news.15

Now you are asking stuff that is actually in the documentation... Doors & windows: http://www.inagoni.com/comment.php?comment.news.12 Shading: http://www.inagoni.com/comment.php?comment.news.23 There is a series of tutorials at: http://www.inagoni.com/comment.php?comment.news.22 Pictures and all. Good luck!