I've logged in via SSH and run the following command:
certbot --nginx --redirect -d subdomain.domain.com -d subdomain.domain.com -m email@example.com --agree-tos
This gave me a certificate which is great.
However, I note theres a certificate section in the Secure Connection area in the Web Administration area. I drop down that option and nothing is there.
How can I ensure OMV is using my certificate?