get Pins & Boxes at
https://aescripts.com/pins-and-boxes/

In this tutorial I explain how you use Pins & Boxes for Ae. With Pins & Boxes you can create complex dynamic layouts for After Effects very easily. You don’t need to write your own expressions – Pins & Boxes takes care of all the technical details. Creating layouts for motion graphics templates has never been so easy.

In part 1 we create the dynamic layout that automatically changes if any of the texts are changed.