Registering an XRI is easy: You select one of the so-called GCS symbols ('=' or '@') choose a name (e.g. "yourname" or "yourcompany"), which will be registered under the root authority. Therefore, your new XRI will be =yourname or @yourcompany.

Once registration of your XRI is complete, it will be visible in the "Your XRIs" list, where you can configure it in various ways.