Yes, you can add as many pages as you desire.
You can choose to have your own domain name such as example.com or you can use our extension for free such as example.co.uk.net. Using your own domain name will require you setting up a CNAME record within your provider's DNS settings, so that it points to CO.UK.NET
If your package allows for a custom domain name, all you have to do is configure the domain name via your domain providers control panel by adding 1 DNS record. Simply setup a CNAME record that points to CO.UK.NET You may have to speak to your domain name provider for assistance if this is beyond the scope of your experience, so not to cause issues with your DNS settings.