First of all thanks for all the fans for the reviews, comments and following up. This topic is prepared as a special request for my followers on LinkedIn, DynamoNodes and Facebook.
In our previous tutorials we showed how to:
In today’s tutorial we will make a little tweak for the Create Wall Opening for Cable Tray in Revit 2016 using Dynamo workflow to perform the rectangular wall opening for horizontal pipes.
The example will use the Revit’s standard rectangular wall opening. Depending on the radius of the pipe the width and height of the opening will be set.
The workflow file can be downloaded from here
Dynamo Nodes 
Thks for the script.
Awesome as usual.
manel