Q: I want to create a smart collection within an existing smart collection.
A: No, you cannot create smart collections within smart collections. A smart collection is an active “filter”, that is updated every time it does get a “focus”, aka you are clicking on the smart collection.
What you can do to “somewhat” get around this limitation is to create a collection set:
- Create a “regular” collection
- Create the various smart collections
- Create the collection set that contains all these smart collections.
You can expand the smart collections by adding them together, you can’t shrink them (meaning a subset of the smart collection), by doing various filtering within the smart collection.