I am a room owner in PHP and occasionally people ask me to delete things. As I understand it, room owners can't and probably never will be able to do that. However, according to https://meta.stackexchange.com/a/87773/170584 I should be able to move messages to another room (such as bin). I have just one question: how? I can't seem to find any way to perform that action. My searches haven't proved helpful as well.