By default, chat rooms have a single stream of unthreaded messages. When you create a room, you can turn on threaded messages instead. Conversation threads help your group to discuss separate topics in the same room.
- History is always on in threaded rooms.
- You can’t change this setting after you create the room.
- Open the Chat app .
- At the bottom, tap Rooms .
- Select a suggested room or search for another room.
- At the bottom, tap New thread.
- Enter the message.
- Tap Send .