Some Grasshopper plugins need to be installed by the end user as they are dependent on the user’s profile. Below are the instructions for installing them and links to the most common plugins that users can install themselves.
1. Open Rhino 5
2. In the Command Line Type: GrasshopperFolders
3. Select “Components” from the command line options
4. Copy the plugin files (*.gha and any accompanying *.dll files)
5. Close the folder
6. Launch Grasshopper and your plugins should be available!