Nope still no support.
On github is code for rademacher public. So anybody can rewrite the rademacher code for domoticz

Guess there are few people using rademacher shutter motors.

Only in germany. That s why i prefer Fhem as domotic system'

I too have Rademacher usb Duofern stick for remote control of shutters. Is this usb stick already supported now by Domoticz ? At the moment I'm using FHEM which fully support this Duofern usb stick. Source code from this module (Perl) is opensource so maybe someone could convert this into Domoticz ...