An event is any activity (for example, clicking a button, typing a keyboard shortcut, loading a form, or changing the value of a variable) that signals a need for the application to perform one or more actions. Each action can be a sequence of commands of the type described earlier and can also include running methods. The Events branch () contains all events that listen to changes on various data entities, such as global parameters or string data. Right-click the Events node and choose Event () to add events to the application. The main Events node contains options for events connected to starting and closing an application.