While Finale has always been able to create the appearance of a keyless score, in the past it required some creative work-arounds.
Instrument Doubling with Finale 2012
Need to have a sax player switch, mid-song, to clarinet?
The Change Instrument Utility in Finale 2012 makes instrument doubling fast and easy.
Finale and the Keyless Score
Okay, I have a pretty niche topic for you today. Someone recently asked me: “How do I set up my score to not use key signatures, but to instead show all accidentals next to the notes?” It seems like keyless scores are becoming a convention in modern atonal music, or for scores with frequently changing tonal centers.