Grasshopper + Colibri
Give it a go (video alert!)
How I created those branches from Grasshopper to Revit
My previous solution is not valid anymore!
How to get started
Use AI chatbots to create specific parts of your scripts
An example on how to automate transfering geometry from Revit to Rhino
Create a curve from Rhino to Revit than can be edited in Revit.
Get in Rhino all the elements visible in the Revit Active´s View