Board Thread:Support Requests - Getting Technical/@comment-25295528-20160311165632

I would like to know how to create extra information boxes that appear on the right hand side of the Wiki Activity page on any wiki. I have seen several wikis that have extra ones, such as "latest files" and other notifications, and their location can vary; I've seen them above the Chat box, below it, and below other default information boxes. How can I create these?  