i disabled the touch logic, and added Drag & Drop behaviour to Scroller object, and it gave me the same effect does it really have to be touch input?, and how about the deceleration effect when i scroll but not reaching the limits?, and if the menu can show perfectly 3 items, and i scrolled and stopped at a position where there are 4 items is shown, that means half an item in top, and half bottom, now the scroller should automatically adjust its position to show only 3 item, how to implement this too?