Under Composites in the Workspace, double-click the composite you want to view. The Composite Definition window appears for the selected composite. In this example the String Data composite definition is shown.
Composite Definition Window
From this window you can:
Add, insert or delete fields (using the right-click context menu);
Change the name of a field;
Change the data type (using the ellipsis button);
Specify whether the field is required (using the checkbox);
Change the length of a field (using the checkbox); and
Change the max length of a field (using the checkbox).