Fullcalendar events on vertical overlap?

im use Fullcalendar,an i ask if its possible to put all events on same hour thats overlap in vertical like in image bellow ? The color its only an explample to be more clear.

What i have tried ?
I already tried saw in the documentation, but i cant find nothing that helps me to solve this problem, but i can solve this.

If anyone has tried this before or knows a possible solution I look forward to hearing from you.

calendar example