How do you display fields created via the File Entity settings configuration? I'm using the File Entity module, and it lets me modify the configuration settings, adding a few fields to a file type, but I can't seem to figure out how to get the custom fields I created to show up in the add content screen. Only the Alt text and Title values show up. What am I missing?
I was also looking for that functionality, and found this module does exactly that: File Entity Inline


  This module aims to provide the ability to edit File entities inline,
  as part of another form (such as nodes). This should enable the
  ability for reusable and site-wide editing of file properties, such as
  description, alt text, captions, bylines, etc.