I’ve recently started using Plex, and Playon/PlayLater in conjunction with XBMC (Kodi). I can’t tell you how fantastic the combination of these products is. That being said, there was a feature absent from Plex that I was missing… The ability to delete media on your server using a Plex client. Well luckily, it’s not far away.
On your Plex server, go to settings>server and click “show advanced”
Then click “library” and tick “allow clients to delete media” and finally save your changes.