This is probably the number one question I get asked by faculty. Unfortunately there is no easy answer to your question.
If possible, get a copy of Respondus so you can download the quiz exports. It is much easier to make changes in Respondus than Canvas. In this troubleshooting guide I have some tips on using Respondus. You can also print tests from Respondus or get them into Word document format for even easier revising.
Importing Question Banks Troubleshooting Guide
It is important to understand that question banks are just considered templates and there is no connection to the questions in the quiz to the questions in the bank. When a question is added from a question bank, it is copied from the question bank. Here are the most commons suggestions I offer.
Don't create questions directly in quiz - When questions are created directly in a quiz, copies of the questions go into question bank called unfiled questions. This not practical question management. You can go to the question banks and move those questions but it is easy to forget to do this. I encourage faculty when creating quizzes in Word/Respondus/Textbook Publisher software to create the quiz in the same manner they want question banks organized in Canvas. For example, when creating the quiz only add chapter 1 MC questions or whatever organization makes the most sense for the instructor. Give the quizzes meaningful names so the question banks also have meaningful titles. If you are creating the questions directly in Canvas, start in the question banks so questions are organized.
Don't edit questions in a quiz - Outside of the minor edits for regrading quizzes, don't revise questions in a quiz. The revisions only exist in the quiz and not question banks.
Add distinct titles for questions - If you aren't adding good question titles, you'll have a bunch of questions with titles labeled "question". This is not helpful when using the Find Question option in quiz. The question title is the first thing you see when using the find question option when adding questions to a quiz. If you use Respondus to import questions from Word, you can quickly add questions titles when importing them into Respondus.
Good news is that Instructure is working on building new quiz engine so you might want to add your comments on what is important to you.
Modern Quizzing Engine
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