I'm trying to create a diagram that shows the Null Status for a column. That option is usually there but is no longer available to select in Display Preferences. I've gone to "Customize Content" -> Columns -> Select Attributes, and Null Status is not there. The Mandatory attribute is available but takes up too much space in the diagram. I'd be happy with changing Mandatory to <m> but I don't know how to do that. If someone could help me with either of these so that I can show if a field's Null Status that would be great.
Thanks,
Debbie