User blog comment:Twilightsagafan/You Guys....I am sorry/@comment-1642927-20120409201717/@comment-1642927-20120410172130

Having multiple windows or operations open you can switch rapidly between the them by simply pressing those two buttons together. It's faster than using your mouse to minimize the window. Trust me... I've done this for years. Thus if you have the chat window open, hear somebody coming, Alt+Tab to switch to something else.