Question: How to change Agenda from Series items to Non-Series items, i.e. I donot want to share the agenda between all the appointments.

Situation:
I have modified the Agenda List Settings under the category "Share List Items Across All Meetings (Series Items)" to "Yes". With this action the agenda items have been shared for all the appointments (in a calendar recurring event).
But now I want to revert back this setting to Non-Series i.e. agenda items should not be shared.

I am aware that SharePoint doesn't provide any out of box functionality to change this setting.

I want to know the possible ways to change the Agenda list settings so that the agenda items donot get repeated for all appointments.