Attributes are used to select the current scrolling display
    and to direct various types of debugger output to particular
    displays. This gives you the option of mixing or isolating
    different types of information, such as debugger input, output,
    diagnostic messages, and so on in scrollable displays.

    Use the SELECT command with one or more qualifiers (/ERROR,
    /SOURCE, and so on) to assign one or more corresponding
    attributes to a display. By default, if you do not specify a
    qualifier, /SCROLL is assumed.

    If you use the SELECT command without specifying a display name,
    the attribute assignment indicated by the qualifier is canceled
    (unselected). To reassign display attributes, you must use
    another SELECT command. For more information, see the individual
    qualifier.

    For a list of the key definitions associated with the SELECT
    command, type Help Keypad_Definitions_CI. Also, use the SHOW KEY
    command to determine the current key definitions.

    Related commands:

       DISPLAY
       EXPAND
       MOVE
       SCROLL
       SHOW SELECT