After selecting the desired subsegments, there are two options:Create Supersegment: Click this button to create a new supersegment and add all of the selected subsegments to it. The following dialog will appear:
Enter a Unique ID and Description for the new supersegment and click Ok. The new supersegment will be added to the Supersegments module and will appear in the Supersegments grid at the bottom of this dialog as well.
Add to Supersegment: To add the selected subsegments to an existing supersegment, highlight a supersegment in the bottom grid.
Click the Add to Supersegment button.
All selected subsegments in the top grid will be added to the supersegment in the bottom grid.