How do I add questions to an existing Item Bank?
Once you create a question in New Quizzes, you can add that question to an Item Bank for use in other assessments. You can add Questions or Stimuli from any course where you have permission to create and edit a quiz using New Quizzes.
After a question has been added to an item bank, all question properties other than point value and certain options must be edited in the item bank.
Also see:
The instructions below show you how to add questions to an existing Item Bank —
In a Canvas course, go to any existing New Quizzes quiz, or click "+Quiz" to create a new quiz

Click on the pencil icon to edit an existing question

Click "Item Banking"

Click "Add to Bank"

Choose "Existing item bank", use the dropdown box to select a bank, then click "Add"

This adds the question to the Item Bank.
Click on "Item Banks" to view the question in the Bank

Example:

For more information about working with Item Banks in New Quizzes see: