How can we write a program that changes the order of reminders?

We develop and manage iOS apps.

The app has iOS reminder retriving, adding and updating process.


We can add a reminder with "saveReminder method", but it is added at the end of the reminders on iOS13.


We want to add the reminders top of the reminders, and change the order of the reminders on iOS13.


We've been developing with reference to the following.

https://developer.apple.com/documentation/eventkit/ekeventstore/1507181-savereminder?language=objc


It would be greatly appreciated if you could explain the details.


Regards,