stratohack

Hi , i have a FBV express MKII and i want know how change conf of buttons this to amp (line 6 spider iv 75) y try with line 6 FBV Control, but only work whit Vst and software in MIDI , not save conf into FBV MKII to amp . example default conf Button A => Channel A in amp new conf Button A => On/Off Delay in amp