From the Autodesk App Store:
About This Version
Version 2.0.1 , 11/4/2016
- 2.0.1 Reducing regularity with TurboCrowd
- 2.0.0 Elements can follow topography
- 1.0.1 Preview window for top, front and right views
- 1.0.0 Initial release
Use "Crowd" to create a forest in a few seconds. Add hundreds of components randomly like people, vehicles and others on a straight or irregular topography.
This tool can also help to design random patterns on walls or floors, random lighting, etc.
The Crowd add-in is brought to you by Emanuel Favreau. It's priced at 6.00 USD.
This add-in is compatible with Revit 2016, 2015, and 2014.
There's more information available on the Autodesk App Store.