Adds the Circuits class to the display.  Optionally, circuits
  which are in a particular state can be added to the display.
  By default all circuits are displayed.

  Format:  ADD CIRCUITS [/qualifier,...]

1  –  Qualifiers

1.1    /ALL

  Adds all the fields in the Circuits class to the display.

  Format:  ADD CIRCUITS/ALL

1.2    /TYPE

  Specifies the type of circuits to add to the display.  Valid circuit
  types are:

         OPEN    - Circuits in the open state.
         NOOPEN  - Circuits in the closed state or any of the
                   open-in-progress or close-in progress states.
         ALL     - All types of circuits.

  Format:  ADD CIRCUITS/TYPE=(type[,...])

  If only one type is specified, the parenthesis can be omitted.