Your chatmessages will appear in chronological order. New received messages will be displayed in the upper right corner of your desktop.
Furthermore you have the possibilty to search for users to reread your chat again.
You can easily modifie messages from you and your friends. Therefore you just have to move your pointer over the message your intending to modifie. You will see different icons, that allow you different actions:
Not archivated messages will be automaticly deleted after 6 months.