AEC DESIGN TECH EDITION – EP013 – Amazing New Features In Dynamo 1.23 to Enhance Revit Part 1
Create Floors with points
Create Roofs and Roofs with Points
Create Walls By Face
Create Error Checking Rules
Plus many more
Also check one of our Your Partner Blogsites http://sixtysecondrevit.com/ for some in depth explanations of these new features.