If you want this animation to loop all you have to do is alt-click the stopwatch next to the position property: Let’s say you have two keyframes on the position property of a shape layer that moves the layer from top to bottom. This is perhaps the most simple way to loop in After Effects. How to loop keyframes in After Effects using the loop expression How to loop an After Effects composition using the loop expression.How to loop position/rotation/scale property in After Effects using the loop expression.With that in mind, here’s a couple of options to choose from that will tell you how to loop in After Effects: As with most things in After Effects, there are numerous ways to go about creating a loop and this will largely depend on what it is you’re trying to loop.