Re: Non-standard key signature (incl. micro-tones) repeating on each line.
Reply #3 –
Use a font editor to replace an unused Clef glyph with the look of the custom KeySig you want. Use that Clef on a layer. Or, if the KeySig and Clef is the same for the entire piece, just add the accidentals as contours to the Clef glyph.
Why anyone would choose NoteWorthy for avant-garde notation is a mystery to me.