Thank you for your post.
This has been reported previously, and the reply from Development is that the entire web architecture in FileMaker would need to be changed. Now, the current record is always moved up to the top of the list for editing. Using the book, switches you back to the first record, and as you reported, you lose your place to the record that may be far down the list.
I have added your post to the original case. If any information becomes available, I will post here.