Sub-Zero.bundle VS mkvbatchmultiplex

Sub-Zero has not been maintained since 2021 so I wouldn't consider that a good source.

For a more standalone way, look into Sub-Zero which was THE Subtitle plugin for plex.

Sub-Zero is a third party agent you add to your server

I did find a post, 3 years ago, in the Emby forum that this person did manage to have Subtitles in plex and they were in their own folder by using Subzero. However, the Subzero Plugin states:

It should, but you need to use Kitana to actually interface with it.

See here why it can work with the Plex Movie (Legacy) and why it doesn't work with the new Plex Movie agent: https://github.com/pannal/Sub-Zero.bundle/issues/753

I've used Sub-Zero plugin (https://github.com/pannal/Sub-Zero.bundle), it's quick and always has subs for the languages I need (english and spanish)

Sub-Zero

MKVMerge Batch Multiplexer works really well for whole season adjustments. I almost never have to make batch files anymore.

Here https://github.com/akai10tsuki/mkvbatchmultiplex

MKVToolNix doesn't have a batch processor. You can use the Multiplexer --> Show command line option to show the mkvmerge options for one file and then build a script to do all of them. That's what I used to do before finding the mkvbatchmultiplex add-on tool (no Linux download that I could see).

MKVMerge Batch Multiplexer: Videohelp

Use this beauty, when installed, open Toolnix and recreate the job you want the batcher to replicate, and before muxing, go to multiplexer toolbar and show command line, copy that code in the batcher's command, then analysis and check files, if all is green add queue and start worker.

Use this, in Toolnix, simulate what you want the batch to mimic (make a job and change all you want) then instead of finally muxing, go to multiplexer top menu, show command line, and copypaste the code in the batcher's command layer, then press analysis, if all's green, then press check files, if all's green as well, press add queue and start worker to star multiplexing.

Use this in this way.

Try MkvBatchMultiplex in his stable form.