The settings for iTunes are located in Settings → Library + Show Advanced
Read this, twice: FAQ 27 - Migrating an existing PMS from DSM 6 to DSM 7
Synology forced several changes on Plex for DSM 6 vs DSM 7. The two major changes are that Plex runs under a different username, PlexMediaServer instead of Plex, and the Plex Data Folder is in /PlexMediaServer instead of /Plex.
Due to Synology restrictions, updating Plex to run under DSM 7 is not straightforward.
Read the FAQ before proceeding.
Before updating to DSM 7:
- Stop Plex Media Server
- Make a backup of the /Plex shared folder. Using Hyper Backup is OK.
- Uninstall Plex Media Server
- DO NOT remove the /Plex shared folder (you’ll just have to restore it later).
If the migration does not work, do not panic and start deleting things. Write back and someone will be able to assist.
