In case you missed it buried in another thread, our member Jerry_toy is in the process of creating window and door families (and more!) for Traco....he's asking for advice on how to make them so they are really good families....
Help Jerry, and we may all get some new manufacturer's content! (They plan on making them available)
Here's the thread:
http://forums.augi.com/showthread.php?p=71036