Setting an option by selection:

Many features of the Sniffer may be optionally turned
ON or OFF as needed.  This includes such selections as
the type of view displayed on the screen, whether or
not a pattern matches a frame, or whether a list output
is automatically paginated.

A check mark (û) is shown when an option is active or
ON, and an "x" when the option is inactive or OFF. You
alternate between these two conditions by pressing the
spacebar when the highlight bar is on the item of
interest.

Selecting one of several mutually exclusive choices:

Sometimes several choices are offered, but enabling one
condition disables the others.  For example, you may
wish to direct Printer output to the LPT1 device, to
the COM1 device, or to a DOS file. You may select only
one of these three alternatives. This situation is
indicated by vertical bars, with the current selection
marked, as follows:

     º  LPT1       Press spacebar with the highlight
     Ì COM1       bar positioned to select
     º  File       your choice.

Causing Sniffer actions

The various items in the menu which represent actions
that you can request are marked by an ENTER symbol:

               Capture  Ù

By pressing ENTER you will start that action.  If the
item is also a one-of-many selection, pressing enter
will also select the item as if you had first pressed
the spacebar.
