The internal Helicon can work in two different ways.
It can use the Chords to create the harmonies or you can create separate tracks to guide the harmony.
Been a long time since I used it, I'd have to look it up for more detail.
At one point there was a contest here using it .. there were good examples and tips in that topic.

*Edit
Found it, can't believe it's still here after all these years

Some links may not work, it's a very old post
https://www.pgmusic.com/tutorial_audioharmonies.htm

Last edited by rharv; 05/04/19 03:18 AM.

I do not work here, but the benefits are still awesome
Make your sound your own!