after digging through the manual it is apparent that the display items that won’t pass through video out are those that are assignable, i.e. those that you can assign to toggle on/off with various ‘assign’ buttons. these include ‘lens info’, ‘histogram’ and ‘BRT display’, three that i’d really like to see on my external monitor.
still, i’m hoping there is a way to get these display items to appear on my external monitor.