When you log in to your io.adafruit.com account, you will be directed to your account overview page. Click the Dashboards link in the header to navigate to the "dashboards" page.

Your list of dashboards will only have the Welcome Dashboard when it is first loaded. You can start the dashboard creation process by clicking the New Dashboard button.

Enter the name and description of your new dashboard, then, click the Create button once you are finished.

Once the new dashboard has been created, click on the name of your new dashboard to visit its page.

You should now see your new, blank, dashboard.