auto-focus on selecting tab
When an agent clicks on the tab down the left side of the window, the chat tab opens, but the particular chat window is not highlighted. It would be good for it to receive focus or otherwise be indicative which window the agent clicked. More handy when having multiple chats open and a user adds a new message to an existing conversation, upon entering the chat tab, it's not immediately obvious where it came from.
Similarly when "join"ing a conversation, the message window should receive focus