No.
However, you can still include extras, trailers, etc. They show up as “Extras” when you’re navigating info for a specific movie. See picture at bottom.
See Media Preparation documentation. Specifically, the “Local Trailers & Extras” section of Local Media Assets - Movies.
Pay particular attention to Plex requirements for file naming & organization. If you stray too far from what is in the documentation, things will go awry.
Correct Way:
/Movies
/Avatar (2009)
Avatar (2009).mkv
/Trailers
Theatrical Trailer #1.mp4
Wrong Way:
/Movies
Avatar.2009.1080p.dts.truehd.download.site.name.mkv
Note that Plex ignores text in brackets, so the following is OK as well:
Avatar (2009) [whatever you want here].mkv
For ripping, use MakeMKV, makemkv.com. It simply copies the movie from the disc to your system, w/o modification (no transcoding, etc). You can choose which audio tracks, subtitles, etc to rip.
For file manipulation, use MKVToolNix, https://mkvtoolnix.download/. With the multiplexer section, you can add/delete audio tracks, subtitle tracks, etc. The Chapter Editor lets you edit chapter names. The Header Editor lets you add/delete/modify metadata such as audio track names, which audio track is default, etc.
MediaInfo, MediaInfo, is another useful tool. It provides a detailed view of the movie file.