Currently, on the web interface, every time a field is selected or data entered on the "Advanced Listings" page the page auto-refreshes. This causes the page to jump around and makes it very difficult to use. Page should remain static while user is entering information and only refresh on user request.

I use "Advanced Listings" frequently to enter custom weights as there is no entry box for custom weights in the web interface listing edit page and being able to weigh and enter data in batches is much simpler and faster than weighing each book at the time the listing is created.

(Sidebar: The "Advanced Listings" page in the web interface also leaves artifacts at the top of the screen when scrolling, such as the [X] boxes for deleting photos, which is distracting and not very attractive.)