The Add to Combined Data Element window displays information about the combined data element you are managing and the data store layout data element that comprise the combination. This window lets you display, modify, or delete data element combination information.
A combined data element is essentially a “dummy” data element that you create to manage a combination of different data elements that belong to the same data store.
To access the Add to Combined Data Element window, right-click one or more fields in the Grid area of the Work with Data Store area and click Add to Combined Data Element.
An example of the Add to Combined Data Element window is shown below: