I have made an animation of machine which speed up from 0 Rev/min to 3500 rev/min when I click START button. Now I would like to make a speed setter within this animation. The function of this speed setter would be like this, when I click on this speed setter button, a pop-up (small window) window with confirmation button will open where I can put the desire speed (which will be between 1 to 3500) and after pressing confirmation button the machine...