Always save a version of your project before running scripts that alter timeline structures.
: Attempts to preserve all effects, masks, and blending modes when moving layers between compositions. Advanced Controls unprecompose plugin free best download
You are looking for a file named UnPrecompose.jsx (or .jsxbin ). It is roughly 50KB. If you see a .exe or .zip with a password, run away. Always save a version of your project before
If you're unable to find a free download option or prefer not to download software from third-party sources, you can consider alternative plugins that offer similar functionality, such as: unprecompose plugin free best download
Several reputable developers offer these tools for free or under a "pay-what-you-want" model.