1.Select the Gallon object and then click to insert a Translation Animation. The object's shadow then appears. Move it to wherever wanted.

Translation Animation

The beginning of the movement represents position 0 (zero), and the end represents position 100.

2.Right-click the Animation and open its Properties Window. Create a Link in its Value property to the Animate Tag.

Link in the Value property

3.Change Animation's Enabled and EnableSlider properties to False.