t18au - Caw does not work like that - you cannot just take down the world and add that - then put it back up - first of all adding anything means after the fact the creator has to then reset (or rebuild routing)routing, then in order to put that back up she would have to use mods and S3p mod to change the number of the world to put it back on the exchange which even if that is possible may look to the dev as someone copying - so she'd probably have to remove one version even though they would have seperate numbers and that is only if she will use mods and knows how to even do it - as EA did not allow a way to take down a world and do anything to it, and then put it back up on the exchange. Nothing a creator can do, but use mods to put a world back up once it has been changed. But it is a big - BIG deal and not fair of anyone to ask any creator to do something like that just for them. Oh and all that is if she still has those particular CAW files. Not all creators keep theres. That's another whole problem also EA did not account for, and more mods if they did not keep their own CAW files to even open a finished world. But it is not a simple matter.