The source of the problem seems to be the narrow mind of a man who does not allow the possibility of working at a club station under a special sign, and applies any regulations nowhere saved.
Assuming that “narrow mind” belongs to me, you are mistaken.
The reason that Club calls are not currently recognized is that I have not found a way of adding the necessary flags into the WordPress database in such a way that they can be queried correctly.
The source code is Open (see https://gitlab.com/WWFF/wwff-logsearch) and if anyone has a suggestion, they are welcome to propose the appropriate changes.
At some point, either when I (or someone else) has a solution, the Club table entries will be reinstated – if I had no plans to do so, I’d have deleted the columns by now! Meanwhile, if you put both the club call and the operator into the log-file the data is there for future aggregation.