More Advanced Show/Movie (.nfo) support

I read the wiki and searched the forum but couldn't find this.. I have a Mac Mini running the Eden and what I would like to do is have a .nfo file for each show and for my movies that have subtitles that overwrites whatever the general on/off subtitle setting is set for. Basically.. I have shows that have subtitles that I dont need which can always be off but then I have shows that I need the subtitles to be on. If I could just add to the nfo file Subtitles: English (1/2) or something like that. Is this a possible feature that can be added or will i have to edit the database?