[adriano_f]

This is pretty much exactly what we're trying to achieve with Gingko.

It's a full tree editor, that is being used for everything from PhD theses, to television screenplays.

http://gingkoapp.com https://www.youtube.com/watch?v=egCKZHsICm8

[aendruk]

It's a shame that this is proprietary and hosted—as good as nonexistent in the discussion of general-purpose tools.