LET /CHOICE

        [SIC\]LET Variable [= Expression] /CHOICE Val1 ... ValN [*] [/PROMPT
    "Prompt Text]
        [SIC\]LET  Variable  [=  Expression]  /CHOICE  List [/PROMPT "Prompt
    Text]
        [SIC\]LET Variable = Expression  /CHOICE [/PROMPT "Prompt Text]
                (GUI input mode)

    Activate a choice widget which will return a value among  the  specified
    list.  The widget will be created by command GUI\GO. This option is usu-
    ally combined with a /PROMPT option. If the last specified value  is  an
    asterisk,  the  choice  widget  will  be  editable and any value will be
    valid.

    The choice list can also be given as a character array variable.

    If the /CHOICE has no argument, the Variable will be displayed, but can-
    not  be  modified. This mode can be useful to display control parameters
    in a menu, or variables which result from operations  with  other  vari-
    ables.