Message widget, Unable to view email recipients

When using the message widget (10.4) it looks like i am unable to view details of who an email was cc’d to.
I have an email that has been cc’d to a number of recipients, however these recipients are not visible within any Message object attributes. They can be seen within the email headers attribute, is there a way to make it visible to users?
Many thanks

Hi Karl,

Is following (screenshot) what you wanted to achieve? Or is it that you wanted to know where this info is stored within a Message object in order to use that field/property somewhere else?

Following is v2020.1 though. If you confirm that is what you meant, I’ll try it in v10.4 as well.