Greetings Nazarene,
Either attach a Notification (similar to an M3 Type Notification "Activity Report" to capture your comments as a Notification long text - you then need the IW22 authorization, but not neccesarily IW32)
-or-
Use Services for Object for the Order to create a Note (this can be done in Display mode in IW33/IW39)
With either option, you will need to adjust your print program and form...