To view all events you have added, or are adding (and saved), simply hover over My Profile (or tap on a phone) and click My Events.
This will display all events, and show those you can edit yourself.
Hover over your events and you will see a display inline-menu. Click Edit or the title of the event itself.
This will open the screen you saw when you Added an Event.
The process is the same, except you cannot ‘save draft’. If you are finished editing, you just click the Update button.