could you move the random question button further to the top of the page so that you don't have to move the mouse every time you want to click it? some questions are longer than others and the button jumps around quite a bit... not that much of a problem but it would be an improvement
you can press command R (control R). i know you are on a desktop, because if you were on mobile, you would not like the idea of the random button being above, because then your thumb would be obscuring the question all the time