Recently, when a space insertion is located in the endline, there is no trace and bar displayed in Xyview.
I would suggest to add an option in JT/DT to choose to display it or not to display it for different purpose.
In CSS you have currently only the -xpp-page value in the display property to end a page.
But in a 2 column job, in most cases (if not in all cases) that will not give you the desired result as it will leave the columns on the current page unbalanced…