To edit your content on an Accordion Style Module Select the Edit Pencil Icon next to the module.
Once you Select the Edit Icon you will see the image below
As you can see there are several things you can do from here...
The Pencil Icon will allow you to edit each section within the module
The Arrows Icon will allow you to move each section of content up or down to change the display order
The Trashcan Icon will delete that section
The Layered pieces of paper will allow you to duplicate or copy that section
Click Save to save changes
DO NOT CLICK CHANGE THEME.