Could I get some response here please? This is a rather important feature, and it doesn't seem that your default navmenu interface allows me to manage this setting.
[Edited to add]
I know why you're not answering my question.
It's because nothing in Design Cloud supports this X technique, and you don't want to document it.
Correct me if I'm wrong, but I can't view/edit the default PRO header, can I.