We are adding it to 1.03 on our 4 bay device so more than likely it will be available from version 1.07 and beyond for the DNS-323.
Please be sure to make the recycle bin an optional feature (user selectable or user enabled).
There are some users who use the DNS-323 to keep copies of their multi-media data
(which tend to be large sized files), and when these files are deleted, we want them to
free up space, not to be copied to a recycle bin.