You can easily view any segment contained in the Workspace.
To view a segment definition:
Under Segments, double-click the segment you want to view. The Segment Definition Window appears for the selected segment. In this example the GT1 segment definition is shown.
Segment 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 check box);
Change the number of repeats for a field;
Specify a segment identity (using the Identity button);
View/add a Python outbound script to modify the string data that will be put into an outgoing message (using the ellipsis button);
View/add a Python inbound script to modify the string data, as it appeared in the message (using the ellipsis button);
Add a validation rule (using the ellipsis button).