I’m sorry, but I do not use OH3 yet. In the past other users also struggled at that point. See here the remark from Dirk https://community.openhab.org/t/openhab-3-0-0-and-enocean-binding-ignoring-sender-id/113110/7
The approach is correct (read the whole thread I linked) but the UI seems to be not intuitive at that point.
Perhaps approach Dirk directly ?
