/CURRENT=number
       /CURRENT=0 (D)

    Adjusts the indentation of the current line. If a buffer line
    matches an adjustment defined with the /CURRENT qualifier, then
    the indentation of the buffer line is adjusted by the number of
    columns given as the qualifier value. A positive value causes the
    indentation to be adjusted to the right; a negative value causes
    the indentation to be adjusted to the left. For example, DEFINE
    ADJUSTMENT then /CURRENT=1 means "Adjust each line that begins
    with the word 'then' one column to the right."

    See the DEFINE LANGUAGE/OVERVIEW_OPTIONS=TAB_RANGE description.