The script will loop any amount of selected layers from the furthest in-point and the last out-point by pre-composing and doing a dissolving loop.

Here's a little expression-based particle system that should work fine for confetti. Each layer becomes a "particle" that gets reused when its life expires.

Arranges Selected Layers in a Grid with a choice to arrange them by Rows first (Left to Right) or by Columns first (Top to Bottom). Layers should all be the same size.

This script will create a new null and parent all the selected layers to it.

This script displays a palette with controls for removing keyframes from the selected layers.

This script renders each of the selected layers separately.

This script creates a null layer that spans the distance between two selected 2D layers.

This script creates a new null layer with a slider that controls its position between two selected layers.

This script displays a palette with controls for sorting layers based on specific criteria.

This expression enables you to set parameters for the position property of your layers - layers will automatically rearrange themselves into a grid.