You might not be able to receive messages from dozens of people in dozens of groups every day and respond to them all right away, and you might want to respond to some of your messages later. To return to and remember that group or chat, use BiP’s “Mark as Unread” feature. As a result, the color of your groups or chats that you mark as “Mark as Unread” on the Messages page will differ from those that have been read, and a blue circle will be added next to it to help you distinguish them.