Very convenient, except with mc in xterm, when you have to press ESC-5 to copy files between panels. Other function keys do other things, which may or may not make you happy. Choices include bringing the window to the front, or back, or to an icon, or quit. Icons Many applications have their own pretty icons, others don't, and you get a default from somewhere. You can specify whether icons will be placed at the left, right top or bottom of your screen.
Every window has two titles.
The full title, that is displayed in the title bar, and an abbreviated one that appears on the icon. These appear in the pop-up menu, to help you find specific windows straight away. This is a bit deadly, so be careful that you don't press it by accident. It Converts an icon to a window, and vice-verse. When you highlight a piece of text, it becomes the X11 selection .