"Registered Members Only" and "Public" Pages on a Zoho Site?

"Registered Members Only" and "Public" Pages on a Zoho Site?

How do I set some web pages as "public" and other webpages as "private" on a Zoho Site? My current website is through PHP-Fusion and this is a feature that is available with the selection of a drop down option. I do not see a site registration option for your custom websites either. Please advise.