Predefined options in FILE SHOW:
Specification OPTIONS=<string> sets certain options for FILE MEDIT.
OPTIONS=W permits updating of data (without a need to press F3).
OPTIONS=S initiates sound effects.
OPTIONS=I sets insert mode.
OPTIONS=T forces pressing TAB when encountering a field limit
when data is typed or edited.
OPTIONS=P forces pressing PgDn or PgUp for page changes
OPTIONS=C writes '.' instead of ',' and vice versa.
Options can be combined. Example: OPTIONS=WS
Specification RECORD tells the first record to be displayed.
RECORD=101 selects record (observation) #101.
RECORD=Commune:Helsinki selects the (first) observation with value
'Helsinki' in field `Commune'.
RECORD=Popul>400000 selects the first observation with greater value
than 400000 in variable `Popul'.
M = More information on FILE MEDIT