Andreao,
Phyllis and David's solution was necessary for a much older version of Revit - in current versions you can easily appy view Filters to achieve dashed line fills that automatically respond to fire rating notations in the wall families.
A good thread for you to review:
http://forums.augi.com/showthread.ph...hlight=filters
I've also attached a sample file (source was originally another AUGI post, but I can't locate it give it due credit) to get you started.
For some guidance on creating graphic embedded line-based families (for example site utility lines) here's a short video (no audio) I created in Revit 2009 that might help you out:
http://www.screencast.com/t/NemuezKcn
Cheers!
http://twitter.com/apertedesign


Reply With Quote

