Nodes menu does not appear in z-wave management

HA 0.97.1 running on RPI, from hassos image 2.12. Managed to add ZME USB Z-Wave transceiver and know that I need to add z-wave nodes via the z-wave configuration menu however the node management menu does not appear (and the OZW log remains empty) in the Z-wave configuration menu in Home Assistant. See screenshot below: node%20issue|690x341
Fixed it by connecting usb key to /dev/ttyACM0 in configuration file.
Note: had to configure it initially connected to dev/ttyS0 in order to get HA up and running in browser.