Editing a subcomposition

A subcomposition node has an icon in its top-right corner, indicating that there’s a composition inside that you can edit. You can open that composition by double-clicking on the subcomposition node on the canvas, or by right-clicking on the subcomposition node on the canvas or in the Node Library and choosing Edit Composition….

When you save changes made to the subcomposition, the changes apply everywhere the subcomposition is used. If the subcomposition is installed in the User Library or System Library folder, this means every instance of the subcomposition node in every composition that uses it.

If the subcomposition is installed in a Composition-Local Library, changes likewise affect every instance of the subcomposition node in every composition that uses it. However, the compositions are limited to those in the same folder as the Composition-Local Library. It’s possible to have different variants of a subcomposition (same node class name, different contents) installed in multiple Composition-Local Libraries — in which case, changes to one variant of the subcomposition don’t affect compositions that use a different variant.