Change the default SSL directory for Let'sEncrypt

Hi.

I have one sub-domain which uses Let'sEncrypt but I would like to have the SSL cert and key stored in a different location to what the default goes to. The reason for this is I have an app on my PC which needs access to this SSL but it can't access it when it's on the server. However, the server runs inside a VM I am able to share a folder which the server CAN access and would like to store the cert/key in THAT location.

Is this possible or do I need to find some other way of trying to implement this? Perhaps SAMBA Share?

The server is Ubuntu 18 (which has the SSL) and the PC (which has the app) is Windows 10 Pro.

Thanks in advance.