I have a similar question. I want to duplicate who the assignment is assigned to. I have to create a separate quiz for students who are participating asynchronously in my course. I wanted to create a group in canvas of these students and just assign each quiz to the group....but that does not work. So I wanted to set up the first quiz and assign it to the 35 individuals who participate asynchronously and then copy the quiz and change the problems but not have to reassign it to the 35 people again. And no such luck. I have 38 quizzes I have to do this way and it would be helpful not to have to worry about making an error in choosing the students to assign it to and not to have the labor of searching for and picking the 35 students in the group every time.
I have the same question. I have a lot of sections with different meeting times and quiz due dates in the same canvas course. Each time I create or duplicate a quiz, I have to re-enter many due dates and times. It would save a lot of time if "duplicate" also duplicated the sections/ due dates/ times. Not just the quiz itself.