Here are the steps to generate a Certificate CSR, purchase a SSL Certificate and then install the SSL Certificate.
Log into the Customer Control Panel
Click on Account Tab, then click Account Settings, then More Tools.
Click on SSL Certificates.
Click on “Create Certificate Signing Request” button.
Select 4096 bit, fill in your information.
Remember the Common name is “www.yourdomain.com” Fill in the other information and submit.
Download and save both the Certificate Signing Request and Private Key Signing Request to your desktop, then click the close button.
Use the Certificate Signing request Key to buy your certificate. You’ll need the Private Key later to install the certificate.