As you type commands, you will notice that the text scrolls off the top
of the screen, just like on a terminal. If you wish to go back and
review what you have typed, move your mouse cursor over to the left
margin of the screen. (Watch the mouse cursor turn into a two headed
arrow!). Press down the middle mouse button and move the cursor towards
the top of the screen. As you go, you can see the text that scrolled of
the top of the screen. Move the cursor down, and the text will go back
off the top. To return to what you were doing, just type a character.
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