I'm very sorry to hear you feel that way, as that is certainly not our intention. You asked how to do something that there is simply not a way in which to do, other than changing the location of each and letting it move them, which is what was stated above. So as far as what you have asked here, we have answered.
It does need to be noted here, we would not manage your site on your behalf, and this has never been the case. This is no different here to what it would be within a ticket.
You have mentioned here you moved to S3, but the files have not been moved, and also asked what files. The answer to the question there is if you have moved all locations to S3, you would move all files in your uploads directory. There is nothing you would exclude there. If you are moving individual items in the list, you are going to need to move them first to another location on disk (so that you then know what files), then move them to S3. There is no other way in which you can determine which files are which.