Creating a new HD720 Comp to be upsized later on. Adding some layers for the sake of this tutorial. So, when you resize Comp using Comp setting it will not upsize the layers and we want them to resize up too. You see… Layers remained same size… And if we scale them manually they scale around their anchor. We don’t want that. Here comes the trick… Just type in desired size and voila… Everything is scaled up as we desired.