Japanese and Endnote

I have been looking at scrivener today.
It looks very interesting in the way to structure the work but I found several problems

  1. Japanese words in the text become a line after compiling
  2. tranliterations like an ō and an ū can`t be written and get lost if you copy paste a word document in it
  3. does Endnote work in this? I don`t see that option for this.
  4. Not all but certain pats of Japanese footnotes disappear

Do you have any solutions to these problems?