I there any chance that version 251 of the firmware brings support?

Aha, good to know. Where did you get this info if I may ask?

I recently bought the Promax switches at Action. I can't seem to get them to work with my RFXtrx433E. I just checked with RFXmngr and the devices behave exactly as described here https://www.domoticz.com/forum/viewtopic.php?f=49&t=9972 , but this thread is for rflink... I read that there is a fix ...

Did you first pair the remote with the switch and then start learning? Or did you put the switch in pairing mode and then start the learning process before pairing?

I can see the status of the light changing in Domoticz when I push a button on the remote but when I click in Domoticz nothing happens.

Hmm, could you elaborate a bit? I'm quite new at all of this.

I bought the same switches at Action today. I can't get them to work with my RFXtrx433E, although I read that RFlink supports them so it think should be possible to get them to work. Anyone has an idea?