Slope a balcony properly with REVIT 2013 family 'void'.
If you've ever tried to propery slope a balcony in REVIT (as shown in the images posted) you know it's a challange and a very time consuming chore to attempt. Even with in place familes.
No no. This is an external rfa family file, and what an awesome familiy it is. Use this very same technique to do all kinds of things now.
See the CADclip video below for a demonstration.