433Hhz RFXTRX

Noob here. Got HASSIO 4,16 installed and the Rfxtrx usb recognised and added. It has discovered one device and some sensors, but I fail to add my nexa remotes.

No configuration is made in configuration.yaml yet.

I tired to put the wall socket in learning mode and at the same time pressing the remote control. Thougt this was the only thing I needed to do?
Is there more to do?

Fixed this myself… No configuration in textfile needed! All is done in UI. Great news. Had to manually get the event code for some devices. look in documentation for this.