Please bring back the self-contained behavior of the old CC Composite

The current CC Composite (v2.0) requires manually specifying a “Top Layer”, but I’d like to request the option to use the previous version (v1.10)’s behavior, where the effect automatically composites the layer’s own original image.

The old version worked fully self-contained, which made it much more practical for effect presets, templating, and layer duplication workflows.

While the new version is more flexible, needing to reassign the Top Layer every time is a real bottleneck for reusability and efficiency.

If possible, please consider:
- Keeping or making the legacy CC Composite behavior selectable
- Or allowing expressions like `thisLayer` in the Top Layer selector

Thank you for your time and consideration.