How To Create a Vocal Harmony with Revoice Pro 5 

Why there is no formant line on my plugin?

I wonder why you did not also use a doubled track for the first harmony voice?

Hey guys PLEASE help understand HOW can i choose the key tat i want my vocal to be tuned? I mean just like autotune, how can i select the key and make Revoice make the pitch correction based on the key note that I want? I'm going in the scales tab and I add the scale that I want but nothing changes.