settings -> autotools -> enable "Automove" feature -> select dir -> choose "hard link"
so the others can delete a torrent and the correspond data, but u have the data still under the selected directory.
furthermore u have to change the rights for this directory, so that others couldn't delete the data through the filemanager plugin or maybe ssh etc...
ps: to save the .to - files u need an extra way (maybe a cron who copy them to the same dir etc.)
