Consider the Skyscrapers demo website. Suppose I want to start storing a new piece of information about each skyscraper, e.g. the cost to build it, or the owner. I think (possibly wrongly) that to do this I need to go separately to each skyscraper page and edit that information.
However it would be marvellous if it was possible to simply create the new field, add it to the template, but then have a method to edit all the instances of that field together.
Perhaps this could be achieved by adding AJAX editing capabilities to ListerPro?