Letsencrypt build option

Hi, how do you use build in lets encrypt option in virtualmin? Any instructions ?

So far I was using this method https://www.virtualmin.com/node/38853 works fine tho would try build in.

When I click there it says its not installed.

Thank You

found it https://techjourney.net/how-to-use-lets-encrypt-ssl-certificate-automatically-in-virtualmin-webmin/