I cannot figure out how to get to the place to enter my Event Notification Endpoint URL

I cannot figure out how to enter the URL for my event. I do not see how to do the following steps:
*Navigate to the “Features” section:

  • Scroll down to the “General Features” section on the page.
  • Click the toggle to enable the “Event Subscriptions” section.
  • Click on the “Add Event Subscription” button.

@education.profdev are you able to see the features tab in your marketplace app?