I've just made some changes to Nodau, this is as a result of using it for a while...

The 'open' option has now been replaced with 'edit' and 'show'. It should be kind of obvious what these do:
edit, opens a note for editing
show, displays a note, without opening the editor

Hopefully this is a little more friendly, as opening the editor when you (I) just want to read a note was kind of annoying.