I would like to know how to add a login/registration section on the top right corner of my page using sitebuilder. Thanks.
The site builder does not offer any authentication modules, unfortunately. If you need more advanced functionality than the site builder offers, be sure to check out the Softaculous auto installer which offers many scripts and CMS which do offer login functionality.
Hi @AngrySid52 what @Admin said is right and if you have knowledge of php then you can setup it by own.