Additionally, you could download the Self-Study Quiz (SSQ) and Self-Study Hide Info (SSHI) scripts. With SSHI, you can go to various item pages on WK (e.g., items by type, level, etc.), filter them so that only burned items are shown, and then click on the ‘Quiz’ button to quiz yourself on the group of items in that section of the page (e.g., Level 10 Kanji). This method might be much quicker than manually resurrecting each burned item to study.
Unfortunately, a change in WK partially broke the SSQ script, causing some icons to become invisible. This userstyle fixes the issue, but you’ll need the ‘Stylus’ browser extension to use it.