The Total actual costing overview form shows the actual costs by cost type and date. The cost type includes a cost group.
The amount of data displayed depends on the level on which you open the information form. When you open the information form from the sales order header, for example, all costs will be displayed. If you open the form from the Part production file form, only the costs relating to the selected part line will be shown.
The Help topic Processes in Isah contains more information about the way in which actual costs are calculated in Isah.