How to default assignment DFFs from position DFFs in Create Job Offer

Summary:

The 25C release notes for the defaulting and validation rules in the Redwood Create and Edit Offer flow gives as an example use case:

'Default Job offer assignment info section to be auto populated with the values of the Position descriptive flexfields.'.

Has anyone successfully done this as we are unable to make this work in VBCS?

Content (please ensure you mask any confidential information):

The What's New documentation Redwood Experience: Defaulting and Validation Rules for Create and Edit Offer Flows says you can default values in the job offer assignment section with values from the position descriptive flexfields. When editing the page in Visual Builder there are several different Position and PositionLov fields and none seem to work in defaulting expressions. The