Before broadcasting to your Facebook Group you'll need to ensure Lightstream is installed as an app on the desired group.
- Visit the group you'll be streaming to
- Click "Group Settings" in the left hand column on the page
- Under the "Apps" section click the edit button
- Locate "Lightstream" and click to add it to your group
Please note that due to recent changes with Facebook's requirements for streaming, you are not able to go live to any page with less that 100 followers.