|Available in: Logi Info|| Source code name: ExtraCrosstabLabelColumn|
Crosstab Tables always have a label column that determines how values are grouped together. For some Crosstab Tables, you may want to display additional columns so that they can be included in a Crosstab Table element. For example, you may use a field called EmployeeID as the main label column to create the crosstab. But if you want to also show the employees' names, you should add an Extra Crosstab Label Column for the first and last name columns.
These extra label columns are for display only; they are not used when determining the crosstab table rows.
Reference the value with "@Data.myID~", where myID is the value of this element's ID attribute.