Have the Timeline Automatically Update its Duration When Changing the Comp Length

I don't know if I'm just doing something wrong, but I've been running into this annoyance for several projects now. I bring in my big Photoshop image with a ton of layers, do some animation, then realize I need to add some more time. So I change the comp length and for some absurd reason, everything in the timeline doesn't change so I need to go into every single folder and change it there too.

Why can't I set it so all the folders in the timeline automatically adjust to the new time? Why does Aftereffects look at all my folders and go "Oh, they changed the length from 0:00:02:00 to 0:00:03:00, they don't need this other stuff to be the same size surely 🙂 " It's so frustrating and takes up so much time.