Possible to Automatically Load SSL Certificates from Files?

I have a question regarding SSL certificate automation with VPOP3 and Let's Encrypt.

I understand the challenges around integrated ACME support and port handling from the VPOP3 perspective. For my setup, I already use Win-Acme externally, which handles certificate renewal automatically without any problems.

The only manual step left is importing or pasting the renewed certificates into the VPOP3 web administration interface each time they change.

Am I overlooking an existing feature that allows VPOP3 to automatically load certificates from certificate/key files on disk?

Or are there any recommended solutions or workflows other users are using for this?

It seems that simply allowing VPOP3 to read updated certificate files directly could already provide a very practical intermediate solution without requiring full built-in Let's Encrypt support.

Greetings
Paul