Secure Plesk Multi Server Management Node
Ability to secure a Plesk management node with an SSL certificate via Let's Encrypt or Security Advisor.
Thank you for submitting this request. Please be aware that the internal feature request for this functionality with ID #EXTPMS-1234 already exists.
However the decision was made to put Plesk Multi Server development on hold and consider another solution for managing multiple Plesk servers.
To install an SSL certificate on MN you can use the workaround described in https://support.plesk.com/hc/en-us/articles/360001463733