First, if this is related to a specific theme, please post it in the appropriate forum category. But to answer the question, I need to know what theme this is for because there are differences between them.
No worries, I moved the topic. However, unless you are putting something in an existing widget position, you would have to do some custom coding. I would recommend using a widget position for this, which you can refer to the live demo site to see where the widget positions are located.