close captions.

I am only offered auto-generated subtitles/CC in Spanish, although the third-party videos are in English. Is it possible to set the options to offer then in English? My settings for my youtube account are a) Languge: English b) Content location: USA. Nevertheless, I am living in Spain.

I have a music channel where I let YouTubers use my free music. So all my videos are of my music and they are just instrumentals mainly. I've heard that close captions help a lot in terms of SEO. Would I be breaking any terms of use if I were to put information about how to credit me when using...