There indeed is, but it is hidden in the button on the right. (And that book is stopped at 10.8%.)
There is a much bigger tendency to click Skip, for comparisons, not for the book. If so then, I would have to click skip multiple times, as well as in the future.
Then, I have to View Gradings >> manually delete Skips / Blocked, when I feel ready to grade.
In case I skipped before, I would need to delete multiple Skips manually.
The single Blocked can’t be deleted from the book’s page. The manual grading button also completely disappeared.
And then, right now I’ve found one more bug (?)
Blocking a book from grading also send that one extra comparison to Skipped.
