You can name your nodes so you don't need to remember the 8 character node address. Just edit the gateway config file
/etc/bigclown/bc-gateway.yml. You can edit the example configuration file.
This example file renames the node with address
836d1983631e to the human-friendly
device: /dev/ttyACM0 mqtt: host: localhost port: 8883 cafile: /home/karel/clown/tls/ca.crt certfile: /home/karel/clown/tls/client.crt keyfile: /home/karel/clown/tls/client.key rename: 836d1983631e: room