I have created Schedule definition below is the screenshot(Definition_1).

In groups table if manager is belongs to multiple groups, only one task is creating, under that multiple groups are visible so manager/delegate can certify the group this is OOB functionality(Task_2).

But we have a new requirement that, though the manager is belongs to multiple groups, only one task to create to that group. How this is achievable?.

Could you help me in what all are scripts to be modified?