Pardon the beginner-ness, but I'm very new to AE and have been trying to solve this problem for a day.
So I've got a file where I'm working with a bunch of tiny red dots from Illustrator. I put them all on their own layer so I could keyframe them individually. I've been struggling to get the setup right. I managed to import the file as a composition and retaining layer sizes. When I got into AE, I noticed it nested all the dots together. When I opened up that nested comp, I found all my individual layers, but I can't do anything with them. The layers in the timeline all have a blue bar (which I've never seen) and I can't zoom out the time ruler beyond 1 frame. Everything is just stuck there.
I'm not sure what I'm doing wrong. Here's a pic of my AE window.
Thanks for the help
Actually, you did import it properly, as a comp. Now you need to change your comp's duration in the comp settings, and extend layer out-points after that.
But there's something else: if you're really new, you need to know that it's virtually impossible to get AE to do what you want it to do without a good knowledge of the basics. If you're trying to use it intuitively, or you're going by some high-school kid's tutorials on youtube, you're headed for a boatload of trouble and frustration.
You'll find excellent resources for the beginner here, from the folks who created the software or who are real AE Pros: people you can trust, y'know? This stuff really will help, and it's worth every minute of your time investment.