Connect to your Web Presence Builder (WPB)
Your WPB is available at the following URL.
Once logged in, click the EDIT WEBSITE button. I suggest running backups frequently prior to performing changes, just to be safe.
Once published, you will need to refresh the browser to see the new changes.
Please be advised that since you are using the SiteBuilder, it is not recommended to use FTP or File Manager to edit files as doing so could overwrite files that are vital to keep the SiteBuilder functioning properly.