Un-PreCompose plugin for After Effects is a popular utility that allows you to extract layers from a nested composition back into the parent composition while attempting to maintain their relative position and effects. Where to Download The most reliable version is a "Name Your Own Price" tool (which includes $0 for a free download) available on aescripts + aeplugins Un-PreCompose (aescripts.com)
The plugin for Adobe After Effects is a popular utility that reverses the standard "Pre-compose" action. While After Effects does not have a native, single-click "un-group" feature for compositions, this tool allows you to extract layers from a nested composition back into the parent timeline while maintaining their effects, keyframes, and properties. Primary Plugin: Un-PreCompose (BatchFrame) Un Precompose After Effects Plugin Free Download
If you prefer not to use a plugin or need a different workflow, there are several free script alternatives: Un-PreCompose plugin for After Effects is a popular
: Includes settings to automatically delete the source composition from the project panel after extraction. Primary Plugin: Un-PreCompose (BatchFrame) If you prefer not
: You can choose to prepend the name of the original pre-comp to the extracted layers for better organization.