[program1]

it mostly depends on which controler you are using, if your using controler 1:

p1_sw_trig
p1_sw_top
p1_sw_aux1
p1_sw_aux2

to program the buttons is acutally very simple

pwm01 = 127

if (p1_sw_trig == 1)
{pwm01 = 150}

this program says "while controler 1's trigger is being pressed, pwm01 will move at 150"

this is the way i was taught anyway, the other ways will work also