To start, add the element to your desired column. The first thing to do is to add an image, and choose your general options, like choosing the popover method. Then, on the Children tab, you can add your Hotspot points, and configure their positions and content. There is a Design Tab for each hotspot, as well as a Design tab for the Element as a whole, so you can style the element in a number of ways.
Read below for a description of all element options.