Font to be used for all languages

Hi

This has probably come up before, but as I work with many European languages, I am trying to find a font that is suitable across the board.  The only one that seem to work is Arial and as you may agree, a little boring...

My searches found NOTO fonts but although installed on my computer, they are not selectable in the font menu choices in Storyline.

If I open a Word document they appear in the list and can be selected.  

I've also tried Calibri, Open Sans, Trebuchet MS but when the translated doc is imported back into Storyline, some of the characters are out of sync (particularly the Greek).   Any suggestions?