Unpackage the .zip 'HC_AutoRigTool' once downloaded.
Place all the files EXCEPT userSetup.mel file in this directory:
- Windows: : \Documents\maya<version(2020 or current year)>\prefs\scripts
- Mac: ~/Library/Preferences/Autodesk/maya/<version(2020 or current year)>/prefs/scripts
- Linux: ~maya/<version(2020 or current year)>/prefs/scripts
If you do not have a userSetup.mel file, place it in this directory:
- Windows: : \Documents\maya<version(2020 or current year)>\scripts
- Mac: ~/Library/Preferences/Autodesk/maya/<version(2020 or current year)>/scripts
- Linux: ~maya/<version(2020 or current year)>/scripts
If you already have a userSetup.mel file don't overwrite it! Just open it up and add, 'source "hcAutoRig_UI.mel";' to it.