It might depend on the screen size. I got a small 15 inch screen and whenever the code was greater than 10 lines, there was a button called 'Exhibit'. You could press that button to open a dialog box with the entire code. With my small screen I also had to scroll the dialog box for larger codes. The dialog box was non-modal. But it was easier to just to close it get the list of choices for the answer.
Maybe you want to go to
testing center which has a larger monitors. In a stressful situation anything can help.
Good luck
Zulfiqar