Enable SSL after installation

Can I enable SSL after I install and start all the components? What should I do to enable it after installation as in the installation command I opted No for enabling SSL?

Do I have to re-install?

AssistEdge Enterprise 19.1 Administrators can enable SSL Post installation, run “ae enablessl” command. Post that SSL certificates are saved and enabled.

I have a cluster setup. Whether I need to execute this command from one server machine or all the server machines?