If you have installed the supplement Product Configurator, the column Conf. appears on the calculation row. When there is a configurable part (a part that is linked to a configuration group) on the calculation row, this button appears . By using this button you can manually open a configuration window. This window can be used to modify a configuration before calculating. When you load a configurable part to a calculation row, the configuration window opens automatically.
Please read more about the configuration window under the chapter Product Configurator in the Using MONITOR Procedures guide.