HOW DO I ENABLE OR DISABLE PRIVATE REGISTRATION / WHOIS PRIVACY?
If your extension is compatible (see list here), then go to your domain names settings. On your dashboard, click on My Domain Names, then click on Registered to access the list of your registered domain names.
Click on the Actions button on the right part of the domain name line, and then click on View Domain.
From there, you can already see if your WHOIS Privacy is enabled. Check the details log to see if the line WHOIS Privacy indicates a Yes or a No.
Click on the green button Settings and then click on the tab Additional Settings on the left. In this tab, you have access to the Lock and the WHOIS Privacy.
Just click on the Enable button to activate the WHOIS privacy. The button will now turn red and display Disable. If you ever need to disable WHOIS privacy, just click again on the button.
Remember that WHOIS databases need between 24 and 48 hours to display the change!