This rollout becomes active only if the loaded proxy file is in .abc file format.
The Alembic layers feature allows modification of a selected alembic proxy by adding layer files on top of it. Each layer transforms the proxy with a different set of properties. These transformations include adding properties to a shape (e.g. UV mapping of an object that has no UVs), overriding properties, adding new objects, pruning objects or properties, replacing an object's (or properties') hierarchy with a new one, etc.
You can combine different cache files. Whenever the same object is found in a layer, all of its properties are considered.
Num layers – Specifies how many layers to include.
Each layer's effect can be enabled or disabled by the checkbox.
Browse button – Browse for an .abc file to use as a layer.
