On the Nautilus Trash and Downloads folders I have set to sort files on inverse modification time sort, but this way I can't be able to know if a folder is older that a file or not. Disabling the 'list folders before files' on the Nautilus preferences panel solve the trick, but it does globally and on normal folders it's a little mess to look for the folders between the files, since I got used to have them on top.
So, there's any way to enable this functionality only on this folders instead of globally in the same way that sort method, list/icon view and so are remembered in a per folder way?