The good news is that the missing device can be added to the DB following the blog here: Blog Posts (opensmarthouse.org). There is a MH-DT311 that might be close.
The bad news is that the 7 series controller is not supported. No idea of an ETA.
Two things
1 You can’t add ( or don’t need to add) a device that is already in the db. Are both devices in the db? Do you have write access already?
2 As noted above the 7 controller won’t work.
After clearing the things previously recognized and the Zwave controller (zstick gen7) and resetting my “old” S2 zstick controller, I’ve added the controller (S2) to OpenHab. Started the scan and added the 1 and 2 button switches with success.
It was definetely the controller which was the cause of the issue.
THanks for pointing out!
Hope the Gen7 stick will be added soon