Hi π guy,

Thank you for adding your request to Khan Academy's Community Discussion Forum! Khan is always looking for more ways to improve its site, and your request you posted may be great if implemented into the website. If you would like, you can upvote or post your thoughts and requests in the Discussions Forum.

You can also send in a Support Ticket to the Khan Academy Support Team requesting new settings (which you posted above). They'll most definitely alert the other KA Staff about considering to make that setting for practice tests.

If you need anything else, please let me know!