You must have Gravity Forms and the Groups plugin installed and activated on your WordPress site. Some of the integration features require Gravity Forms Add-Ons which are only available to those who have a Gravity Forms Developer license.

Please follow these Installation Instructions for extensions to Groups.

After the extension has been activated, a new Groups section is available in the Form Settings tab of each form.

Groups Gravity Forms Form Settings

There are also general settings available for the plugin under Forms > Groups.

Groups Gravity Forms Settings