If I deplete a section bank, how can I renew the section bank and do those questions again?

Repetition has helped me tremendously in other formats...

Hello,
When you go the the "create test" page, you will see a series of four check boxes near the top of the page labeled "all," "unused," "incorrect," and "marked."
The default setting is "unused" so that each test you generate will provide you with new material. However, if you select "all," it will generate tests from all questions in the Qbank, regardless of whether or not you've done them before. If you select "incorrect" it will generate tests from questions you previously missed, and if you select "marked," it will generate tests from flagged questions.

Hope this helps! Good luck!