Harmonizer in Korg Toneworks AX3000G

[Dreamermind]

I have a Korg Toneworks AX3000G.the unit is awesome, it sounds great.
I'm interested in how set the Right Key in the pitch shifter?
For exemple I am playing in E minor and I want to add a third step on top of my playing.Where I can find that setting? All I found were just adding + -24 semitones . I saw a video on youtube and the author wrote in comments tha he uses ESS to make harmonizer. but I don't need arpegiator, just a harmony above my playing.
Thanks.