Graphical user interfaces often hide less often used features under an iconic menu button known as the hamburger button because it looks remotely like a paddy of meat between top and bottom buns ( ☰ ).
Our hamburger button is located in the web page footer. Click it to search for pages offering various utility functions specific to one site, the origin, but not specific to any particular page.
A plugin author includes "about" pages describing what a plugin does and how you can use it. The author can nominate some of these pages to be included in the menu should the wiki server administrator choose to include the author's plugin.