Language overwrite on a per document basis

I use Craft for both Personal, and School notes. One of the problems I am constantly running into, is that Craft only allows changing the Language on a global level, which means that whenever I switch between School and Personal/Work notes, the entire document lights up red.

So I’d love to see the ability to either:

  • Support overwriting languages for a document (or e.g. on a per-folder level)
  • Allow selecting multiple languages for the spell-checker