Suspending Registrations
From the menu:
Events > View Events > Click on wheel icon and select “Suspend Registrations”
When you have created an event that is not ready to be publicized or start accepting registrations click the Suspend Registrations option from the wheel. By suspending the event it will not show in your Events page of the Hub until you click “Resume Registrations” and you are ready to publicize and to accept registrations.