Each study has its own Memory Verses page, one row per week: the verse, the reference, a Listen button, and a checkbox to mark it memorized. It is the same Mark Complete idea as everywhere else on the site, just gathered into one table instead of scattered one week at a time.
At the top is a progress bar just for this: how many of the year’s verses you have actually memorized, not just read. It is a different number from the reading progress on the home page, and it is the more honest one. Finishing a week’s reading and memorizing that week’s verse are two different accomplishments, and this page only tracks the second.