If I leave the URL as
http://www.twcslibrary.net/viewstory.php?sid=9535 then I get the entire story, not just chapter 27 or later. I change the URL to
http://www.twcslibrary.net/viewstory...=9535&chapter=[27,]. Then I only get the chapters that I don't already have. Maybe I'm odd that I only keep chapters until I read them, then they are deleted.
As for the URL from web page dialog, I don't think it's a real recent change. I used to get a multi-line dialog that looks like the one that comes up for the URL from e-mail dialog. Now there's a dialog with 1 line, and I can't paste in multiple stories to pull as a batch.