How to switch between Tabbed and Normal containers [1/2]

You can switch between Tabbed and Normal mode on the container. Just right click the container and either check or uncheck the "Tabbed" box (in tabbed mode) or click the "Set as tabbed container" (if you are in Normal mode).

In the tabbed configuration the windows will show as tabs at the top of the container. When a buddy sends you a message, their tab will flash. You can just click that tab to switch to that chat window.