Which After Effects feature helps you manage and organize multiple layers effectively?

Pre-compositions serve as a powerful feature in After Effects for managing and organizing multiple layers effectively. When you create a pre-composition, you essentially bundle together several layers into a single composition, allowing for more efficient manipulation and management of complex animations. This is especially useful in instances where you may want to apply effects or transformations to a group of layers simultaneously, keeping your main timeline less cluttered and more organized.

By using pre-compositions, you can isolate specific elements of your project and ensure that adjustments made to one component do not interfere with others, facilitating the overall workflow. The ability to nest compositions inside one another also provides flexibility in creating intricate animations without overwhelming the viewer or yourself with too many visible layers at once.

Other choices, while useful, don't provide the same level of organization for multiple layers. For instance, Layer Styles apply visual enhancements to individual layers but don't help in managing the layers themselves. The Composition Panels are essential for viewing and arranging your work but do not directly organize layers. Layer Groups are not a feature in After Effects that helps manage layers; instead, they are more commonly found in other applications like Photoshop.