Switch to the Integration Development
perspective.
In the Message Set editor, the Custom Wire Formats node
of the Properties Hierarchy shows the name of each of the CWF physical
formats that have been added to the message set. If the physical format
names are not in view, expand Custom Wire Formats by
clicking +.
Click the chosen CWF physical format so that the properties
of this format appear in the Details view of the Message Set editor.
Configure the CWF properties shown in the Details view
according to your requirements.
Save your changes either by clicking File> Save or
by pressing Ctrl+S. Alternatively click File> Save All or
press Ctrl+Shift+S.