Add a shortcut to toggle whatever subtitle file I have for a movie on/off in Plex for Chromecast

A lot of times I like to watch movies without subtitles for the most part but sometimes I need to turn them on temporarily for parts where the dialogue is hard to understand. To do this currently in the Plex for Chromecast app while a movie is playing is a lot of clicking around. My suggestion is to add a shortcut to toggle on/off, maybe like a subtitle toggle button in the pause menu or even better some combination of button clicks to do it like triple clicking, clicking up down in a short amount of time, etc. Curious if others would find this useful too.