>> "(An alternative is to have an option on the full tradelist to "Show only activities from the last ____ hours.") This is important so that people can easily look at and rate items that have been added since they looked through the entire tradelist."
Or "the last N days" or "since date-and-time".
I would also wish for a filter "show only ADDITIONS", since that's the only reason that I personally look at the Swap Recent Events.
>> "2) Greater ability to move between swap pages"
I THINK that most of the lost time could be saved if I ALWAYS remembered when to "CTRL-Click" so that the first page remains open. Then I would finish using the second page, and hopefully remember to close the second page so I don't have a dozen pages open at the same time.