This can be done, go to page 12 I think it was for decoding settings.
mv 'Plex Transcoder' 'Plex Transcoder2'
apt-get update && apt-get install nano
nano 'Plex Transcoder'
**
(in file
#!/bin/sh
exec /usr/lib/plexmediaserver/Plex\ Transcoder2 -hwaccel nvdec "$@"
)
**
chmod +x 'Plex Transcoder'
chmod +x 'Plex Transcoder2'