How to animate shape created with pen tool

[defaultwwgf1y7r2ay8]

Hi,

I've created a shape with pen tool. It is rectangle like this.

Then I select two verteces to the right and increase it's size to the right. It should become square like this.

I couldn't find how to do this animation. Can anybody help me?

[Mylenium]

Shape layer paths can be keyframed just like many other properties. You may want to read the online help on some basics.

After Effects User Guide

Mylenium

[defaultwwgf1y7r2ay8]

Thanks!