I could tell you where the event divs are stored but you'd hit another problem soon and it would turn into developing the feature through forum discussions. ;-) Unfortunately there is no API-based solution to this at the moment. So go ahead and explore the DayPilot.Scheduler structure - you may be able to come up with a solution that works for you but please bear in mind that I won't be able to help with that.
There may be a way to plug into the way links are created in the future (or you can sponsor the feature if it's important for you). But at this moment the API isn't ready for it.