Applications can be enhanced by adding more toggles, more plots, and by exploring static HTML elements. More toggles and more elements can be added by simply calling more *Input() and *Output() functions separated by commas. The most popular static HTML elements have wrapper functions -- this recipe is using h3() a lot.
This recipe designs a shiny application with multiple toggles. Besides the Timeline toggle, this recipe will also create a toggle to pick Hoover information and two more toggles to choose the vertical axis variable displayed by each figure (yes, there will be two plots now).