[4.6 - UI] How to instantly move mouse pointer to a certain button when I click button

How can I make mouse pointer instantly move to Yes button when I click Buy button with screen resolution independent? For now I only get the temporarily solution at here. It is hard to make it works. I need a better solution that works on Unity Editor and the final game build. So, it will point to Yes button exactly eventually no matter how I adjust Game windows on Unity Editor and the final game will work for all screen resolution. Thanks.