Hi @Krishan.FAE ,
thank you very much for the help regarding unused outputs. I got an answer from FAE Marc via email regarding min. regulation current. For anyone also interested in this in the future, the FAE tested and confirmed that the regulation current can be set to 5mA and lowered even more with dimming (up to ADIM duty=1%, cca. 500uA was tested).
Best regards,
Matej