Open, close, and scroll to panels

Even if a panel is open, it may be out of sight, beneath other panels. Choosing a panel from the Window menu brings it to the front. Likewise, if a panel group is very narrow, a scroll bar above the group reveals all the panel tabs.

When you close a panel group in the application window, the other groups resize to make use of the newly available space. When you close a floating window, the panels within it close, too.