There is scratch paper--5 sheets are allowed. It seems that some proctors were misinformed or not given this instruction during the May test. I've heard you can highlight and that LawHub is a good preview.
The interface is supposed to look just like LSAC's Lawhub so I would use that a few times even though their tests are still in the 4 section format. Other than that, I think creating section tests in the problem sets on 7Sage is a good option.