I am giving my first exam in Canvas.  I set a time limit that was 25% more than what I would give in class.  A student toook the exam and told me that she could not finish in that amount of time.  I'd like to give her more time to finish the exam that she was working on.  Is that possible?  I know I could give her a retry with a longer time limit, but is there any way to allow her to go back to the original exam and spend more time on it?