Step One: Navigate to your Admin Dashboard.
Click the “You” in the top right corner and click “Admin Dashboard” for your organization. If you are an admin of more than one organization make sure you click the one with the event you want to work on.
Step Two: Navigate to your Event Editor.
Select the "Fundraising" tab and click on the "Events" link and the “Edit” button below the event you want to close/open registration for.