How to Install Dynamo Packages

To install or upgrade new packages, the general steps are as follows:

1. Open Revit.

2. Create a new blank project, or open an existing project.

3. Open Dynamo.

4. At the top, choose Packages, and then choose "Search for a Package".

5. Find a package that you wish to install and click the down arrow button.

Source: https://www.dynamonow.com/downloading-installing-packages/