Rekordbox 5.4.0 beta traffic light question.

Playing with the traffic light system on the 5.4.0 beta.
Am I right in thinking you can’t access the target deck dropdown in sub playlists (iTunes) ? Maybe I’m wrong but it seems a bit of a missed opportunity if you cannot do this. If there is an option to select it for sub playlists, how do I do this?
Thanks.