At least Plex Pass members should have access to this feature.
Ability to move Plex server metadata to external storage on Nvidia Shield TV.
Clearly Nvidia Shield allows Plex to read/write content to /storage/externalstorageID/NVIDIA_SHIELD/
e.g. my externalstorageID = 01E570167C1X5R20/
Plex developers could easily allow the metadata folder path to be configurable in the server settings, along with the transcoder and temporary directories.