TLS/SSL Certificate Deployment - Linux Type as Multiple .CSV file detils

TLS/SSL Certificate Deployment - Linux Type as Multiple .CSV file detils

I would like to ask you for more details also an example CSV file how can load multiple Linux targets per certificate.
I see this explanation:

Manually enter the complete details as mentioned below in the .CSV file::
        e.g., Server name, port number(optional), user name, password, path
        Note: For file-based deployment, the Common Name will be used as the file name.

I would like to know how I can provide SSH key instead password. Also is there an option to point already stored into the tool SSH key as somehow to point it.

Thank you in advance.

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