It would be very useful if it was possible to select where you want to start the next exam. Sometimes for various reasons I do not want the same number of seats as a gap between different exams. I may wish to start a new row with the next exam and not have the same gap as between the 2 previous exams. Being able to select the next seat required for the next exam would be a great advantage. Flexibility in seating is key as all schools work differently.