yeah,the casio px-5s use standard midi cc,so you can edit the knob or slider on you keyboard to control you vst .of course you vst must can receive midicc
I am new here and i have bought px-5s for half year.i did not found a bbs to share idea and a way to disscuss quastion since i found this wap.now i dicide to come here offen. guck