Nested Animations?

I was wondering can you have an animation within an object or group, like a separate timeline. I know Flash can do this with Movie Clips, is there any similar thing in Blender?

I’m using Boids particles for crowd simulation, and I have a group of object I’d like to animate as a whole, if I group them, will they have their own timeline and can they be set as the particle?

try and see! Pretty sure it works