number-columns-spanned

For an fo:table-column this property specifies the number of columns spanned by table-cells that may use properties from this fo:table-column formatting object using the from-table-column() function.

For an fo:table-cell the "number-columns-spanned" property specifies the number of columns which this cell spans in the column-progression-direction starting with the current column.

See http://www.w3.org/TR/xsl11/#number-columns-spanned.