The events.add() method adds a new event to the monthly calendar component.
DayPilot.Month.events.add(e[, data]);
DayPilot.Action object that stores the action details.
Create a new event:
const event = {
start: DayPilot.Date.today(),
end: DayPilot.Date.today().addDays(1),
text: "New calendar event",
id: 1
};
dp.events.add(event);