when the test unhighlights it when you click off it? pretty worthless...can't go back to key parts when youre reading questions later. basically, it's worthless. it does help me to read through something fast by consistently highlighting the line i'm reading. for instance, it helps me mucho in the verbal. it doesn't do much for the sciences, though. i think it keeping your highlights would especially be useful in the VR since there is so much text to search through if you have to refer back to the passage!