Add attribute 'Status' during join/merge (i.e. 'joined', 'unjoined_left', 'unjoined_right')

Greetings,

Do you have a best practice for adding a 'status' attribute populated with the value of the join status such as 'joined', 'unjoined_left', 'unjoined_right'? I can imagine using a 'create attribute' transformer outside of each join transformer port, but that seems heavy on transformers (four total). Let me know if you have a more efficient solution.

Thank you,

Tyler

Workbench 2022.1