Handy Shape Keys is a Blender add-on designed to manage shape keys across multiple collections from a central panel. It lists all shape keys associated with meshes in a selected collection, allowing users to adjust their values in one place.

The add-on includes options to update or reset individual shape keys, as well as bulk operations to update or reset all shape keys within a collection simultaneously. A synchronization feature permits users to link identical shape key values across meshes residing in different collections, updating them concurrently.