To make yourself unavailable for both chat and video calling, click
in the bottom right corner of the messaging sidebar. Then uncheck Available to Chat.
You will still be able to see the sidebar even if you’re unavailable to chat. To hide the sidebar, select Hide Sidebar from the same actions menu.
To make yourself available to chat again, return to the actions menu and select Available to Chat, or just click on a friend in your sidebar to start chatting.

You will still be able to see the sidebar even if you’re unavailable to chat. To hide the sidebar, select Hide Sidebar from the same actions menu.
To make yourself available to chat again, return to the actions menu and select Available to Chat, or just click on a friend in your sidebar to start chatting.