How do I add another event(image)?

I have an Event page on my web site (http://www.bfccityconcerns.org/events) and the original design of the page had several 'you can edit' images.  I chose two upcoming events and deleted the rest, for now.  I will need to add another event eventually but I don't see where, in editor, I add one of those images where I can edit the date.  Can you help?  Thank you!!