Learning Assignment Profile — Worker Assignment Filtered List, how to create and use criteria

In Learning Assignment Profiles (Redwood), when I select "Worker assignment filtered list" under Add by Criteria, the LOV shows "No matches found."

Questions:

1. Where do you create a Worker Assignment Filtered List/ Learning Assignment Filtered List?
2. Can you filter by Position, Job, Hire Date, or Person Type (New Hire/Rehire)?
3. For a "complete within 30 days of hire" rule — is this the right approach or handled via Due Date Rule only?
4. Does the list appear in the LOV automatically after creation or does an ESS job need to run?

In short customer requirement is "Ability to define specific employee attributes/criteria for Compliance training; e.g. rehires and new hires; must be completed within 30 days of hire. "