Upload file (MP3 or PDF) with more than one language

I would like to know if is it possible to upload files with more than one language, for example a PDF in english and portuguese, and a MP3 in english and portuguese and in the Table of Contents I can see only the ones that match the same language I choose in the journal?

For example, as is today:
If I select “English” as the language of the journal, the ToC will show:

  • Article name… PDF, PDF (Portuguese), MP3, MP3 (Portuguese)
    If I select “Portuguese” as the language of the journal, the ToC will show:
  • Article name… PDF (English), PDF, MP3 (English), MP3

but I would like to know if is it possible to have something like this:

If I select “English” as the language of the journal, the ToC will show:

  • Article name… PDF, MP3
    If I select “Portuguese” as the language of the journal, the ToC will show:
  • Article name… PDF, MP3

so, not showing the ones with a different language that I selected? Is that possible or feasible?

Thanks.