How to get server/cloud to show up?

Just bought license for Web app. In Build pane, Server list is blank (says refresh list). How do I get xojo cloud to appear?

Did you buy a web app license of Xojo or a XojoCloud server? They are two separate things. One is the ability to develop web applications that you can host and the other is XojoCloud server that you can deploy your web apps to. There is a separate fee for a Xojocloud server from a web app license.