From the Dashboard select "Scheduling", then "events" followed by "event" and "Access & Options"
Here you can navigate this page in two ways. One is to select the section on the left hand side, and the right hand side will automatically take you to that section.
Here is another example of what it looks like.
The other option is to simply "Scroll Down' inside of the box on the right hand side till you get to the section you would like to modify.