Override system scoring

Hello, I'm trying to figure out how to make it so all cloze questions have the option to be manually graded or to override the system grading. The reason behind this is our clients would like to have a worksheet(multiple questions per page) where each question would have any number of answers(short answer type responses). My questions are: 1. Is there any way to make it so all questions in the quiz module can be overwritten? If so, how can this be done? 2. Is there a way to specify what questions need to be manually graded? If so, how? 3. Is there a way to change the cloze question module to make it so that way all of the questions are manually graded? If so, how? 4. If there is a way to change the score of a question how can we regrade the entire quiz so it reflects the updated score? Here is the module we are using - https://www.drupal.org/project/cloze. We are also updating out system to using the multiple questions per page module - https://www.drupal.org/node/2333943#comment-9126321. But that won't completely satisfy our need. Thanks!