Cloudflare tunnel config files on Synology NAS

I recently setup a Cloudflare Zero Trust tunnel using my Synology NAS which works great.
I now want to setup additional tunnels and according to the Cloudflare documentation to do this I would setup ingress options within the Cloudflare config file (config.yml) on my NAS.
However I cannot find such a file on my NAS that exists (Checked etc/cloudflare/)
Does anyone know where else this file may be saved?

Thanks