I would love to write a little app to be able to send commands to my PMP to enable and disable the subtitles on the currently playing video. My end game is to plug this into my home automation system that uses home assistant (http://home-assistant.io) and ultimately add it to my Alexa custom commands. I was hoping that there might be an available api I can use to do this, however in my initial research to find any docs for plex products I came up short. I found some community made docs for the server but thats about it. Any help would be appreciated, thanks!