To group interface or reusable fields

In the Interface Mapper Interface Fields - Input, Interface Fields - Output, or Reusable Fields pane, select the fields you want to group.
Right-click any selected field and click Group from the popup menu.
Type a name for the group into the Name field.
Type the number of times you want the group to occur into the Occurs field.

Note: To ungroup previously grouped fields, right-click the group name and click Ungroup from the popup menu. Ungroup removes the current group and places its group children one level above.