We have changed the way we interact on the Activity Feed with other users.
If you want to add a player or a group to the message, type in the @ symbol and a drop down menu will appear.
From here, you can click the player or group you want the message to be sent to.
If you receive a message and think another player should see it, then you can also ‘@' mention them and they will be added to the chat.
Full video: https://www.youtube.com/embed/HEy9VODsNas