In the
History window you can choose to delete specific message(s) or all the history with a certain friend.
If you want to open the History window, follow these steps:
-
From Menu, select Contact > Message History.
-
Select the message(s) you want to delete (you can also select a contact and use CTRL+A to select all the messages from this contact).
-
Press the Delete keyboard button. Click Yes in the confirmation message window.