Now after mopping through the web, I understand what Bret meant in his first reply. In display preferences drag that little white menu bar in the arrangement view to the other pictured display. Tadaa!
It’s not the way it used to be, but it’ll have to do. Now my “main” display is my external one (which I do not want), but it does the trick.
Before, my main display was that of the MBP. Now for some strange reason I have to choose the external as my main display in order to view the viewers on the external one.
Scrathin’ my head…
It is not as elegant as it used to be, but it works.