You can add domains to any Multi-Domain SSL order as long as it does not exceed the total number of allowable domains.
To do this via AutoInstall SSL™, you must retrieve the Token for that order, which you previously received by email, or access the Token from your Client Area. Once you retrieve the Token, you can log in to your hosting control panel (i.e. cPanel, Plesk etc), click on the AutoInstall SSL™ icon, and input the Token.
Once you do this, a “Manage Your Active Certificate” tab will appear below with a list of options. You then just need to click on “Re-issue Certificate”.
After this has been clicked, you will have the option to change/add domain names and go back through the installation process.
