It seems that the user stopped working on this. Currently there are no efforts to integrate this at Limesurvey because we don't have the human ressource for coding this. Maybe someone wants to sponsor development of this feature?
I contacted the user and asked for more feedback, maybe he will succeed to complete his patch.
Best regards/Beste Grüße,
Dr. Marcel Minke
(Limesurvey Head of Support) Need Help? We offer
professional Limesurvey support Contact: marcel.minke(at)survey-consulting.com'"