Vertical Movement - This is the increment measured in pixels that the Image/Video will use to travel between the the Top and the Bottom of the screen putting a positive number i.e. 10 in the box, the Image/Video will travel to the Bottom of the screen at a speed of 10 pixels per second, and conversely, putting -10 will cause the Image/Video to go to the Top of the screen at a speed of 10 pixels per second