Specifies the XPath expression or hard-coded value that contains a column index. If not specified then the column name must be specified and the column index will be resolved from that. If specified the column index will be verified against the source definitions file. Any XPath expression must end with a value accessor such as @att or text().

colrule.index={xpath_expression|"value"}

For example:

dyncolrule.index=@index
statkeycolrule.index=1