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Press
or
key to select the history file of annual data. Press
key to delete the selected file.
Press
key to exit and open the selected file. Press
key to return to History record Mode.
While in History Record Mode, press the
key to enter the page selection mode:
Press
or
to select a digit in a number, press
key or key to change the number. Press
or
to change the activated option field and press
key or key to confirm.