Use of Table-Column object

The XSL WD says that :-
"The number-columns-repeated property specifies the repetition of a table-column specification n times; with the same effect as if the fo:table-column formatting object had been repeated n times in the result tree. The column-number property, for all but the first, is the column-number of the previous one plus its value of the       number-columns-spanned property."

Am I correct in assuming that :-

1.  table-column needs to be repeated for each row it is to be applied to, either
     explicitly or using the number-columns-repeated attribute of table-column,
     otherwise it is just applied to the first row ??

2. that using the number-columns-repeated attribute of table-column, the properties
    inherited by a column from the table-column formatting object, can be inherited
    by different columns in each row subject to statment above ie. "The column-number
    property, for all but the first, is the column-number of the previous one plus its value
    of the number-columns-spanned property." ??


Thanks very much in advance.

                    Regards
                       Paul


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