Brand new to Session Horns (and Kontakt in general). I have set the velocity switch to FoPiCre, which sounds great when triggered wth the on-screen keyboard. But playing with my digital piano does not play the expression changes at all. How do I get it to do that? Also, I see red keyswitch keys on-screen, but they only seem to affect the Animator. Am I supposed to use those for the velocity switch or something?