global search (i.e. across spaces)

sometimes you just need to search all of your notes.the spaces (notebooks / folders) concept is great!– but sometimes and depending on ways to organize and work with space one needs to search across spaces.sometimes you just remember that you wrote 'that one note' – or want to find out whether you wrote one on 'x', not knowing where you would have put it (or whether you had time to sort).'search' aside from input is the most basic operation. it is often integral to organisation (of notes), or superseding that.it just should be an as broad, and as flexible as possible functionality ...