Opnsense: track gateways down

Hi,
I have easily installed Netdata on OpnSense and it tracks a lot of metrics.
Unfortunately, my most important metric is gateway status (opnsense and pfsense have a specific daemon that tracks gateway performance and if they are not working) and it seems is not tracked by NetData.
What can I do?
Thanks,
Mario

Nobody is using netdata to track gateways status?