There are times when I read a book over several days. When I set the progress rate, the progress rate for the first day also changes based on the last edit. I would like the progress rate for each day to be displayed. For example, if I read a 300-page book, I would read up to page 70 on the first day and page 200 on the second day, and it would be displayed as is. Currently, when I change the progress rate for the second day, the progress rate for the first day is also changed. Then, I can't tell how much I read on each day, which is a shame.