The window also keeps track of what you've entered in the past (this is called
a command history.) Pressing the up arrow moves you back through the history, while pressing
the down arrow moves you forward. As you move through the history, the text in
the input window is replaced. The command isn't sent until you press the Enter
key.
A short cut to using the history is to click the right mouse button while the
pointer is in the window. A list of your commands will pop up, and you may
choose one. Long items in the menu show up cut short with ellipses, but they will
be sent full-length. When you select something from the pop-up menu, it is
sent immediately. You don't need to press the Enter key.
The Input window