If you miss the old AOL chat rooms, you’ll love Facebook’s plan to combine Groups and with Messenger without spamming you to death. Starting today, Facebook will gradually roll out the abilty for members of Facebook Groups to launch group chats about specific sub-topics that up to 250 members can join. A dog owners’ Group could spawn threads for discussing spontaneous park meetups, grooming tips, or sharing photos as they’re puppies grow up. Chat for Groups could make Facebook’s discussion forums more real-time and engaging, strengthening loyalty to one of the social network’s most differentiated features.

But instead of immediately alerting you of every message in every thread, you’ll first get a Facebook Groups notification inviting you to each new group chat you have to voluntarily join to receive further notifications. If you miss that initial alert, you can always go to the new Chat tab on Facebook Groups to browse the active threads or launch a new one. And if a Group chat gets overwhelming, you can turn off notifications about message reactions and Messenger games, or opt to only be notified if you’re @ mentioned in the thread. As a last resort against spam, Group admins can always shut down a group chat or limit their creation to only other admins.

Facebook has been poking around how it could integrate Messenger and Groups for a while. It already offers group chat for up to 250 members of a Facebook Event, and in 2016 Messenger tested public discussion “Rooms”. Now Facebook has settled on building chat as an extension of its existing Groups instead.

With 1.4 billion people active in Facebook Groups each month as part of tens of millions of active Groups, the feature generates a ton of activity and return visits for Facebook. With Groups Chats, Facebook expects users could “plan events, arrange in-person meetings, or have deeper discussions”. Messaging could also help Facebook build towards its goal of getting 1 billion people into what it calls “meaningful Groups” after it announce 200 million people already were as of May.