The showEvent() method displays the bubble for the specified source event.
DayPilotDayPilot.Bubble.showEvent(e)e (DayPilot.Event) - the source event object
const dp = new DayPilot.Scheduler("dp");
const bubble = new DayPilot.Bubble();
// ...
const event = dp.events.find(101);
bubble.showEvent(event);