The default is to show only changes in the schedule.
But you are right: a few more examples and screenshots are on my todo list!

You can try this (look for showRegularLessons).

{ disabled: false, module: "MMM-Webuntis", header: "schedule for next 3 days", position: "top_right", config: { students: [ { title: "children", qrcode: "untis://s[...]", }, ], days: 3, showRegularLessons: true } },