Inside p GrabSequence, I have to figure out the coordinates for the placement of the box. It took me awhile to figure out the value, so the value goes like (object no., x, y, x, y). Then, it send the signal through s Step1 and etc to trigger the region.
Inside p PlaySound, it will received the value once the region is detected and trigger a sound. Each region have one receiver where it will play different sound using the playlist.