Hi jbelzman,
in the future, please only create one support request on one site – it makes things much easier for me to manage! I already answered your question here within 3 minutes of you asking ??
Quiz names are not used anywhere except for your own reference in the backend. However, if you want to update the name for whatever reason, you can use the “Delete quizzes” button on the main HD Quiz page. This will take you to a native WordPress page where you can quick-edit to update a quiz name.
Also there is no “clone” function for quiz settings, but there is a feature in the works for the next version that is “Default Global Quiz Options”. When this feature is released, you can set the default options and all quizzes will use those default options unless overridden on a per-quiz basis.