You can easily edit leave approvers and who to share leave approval status notifications.
Bulk edit approvers and cc notifications to
Under Leave > Team Leave > All Balance/My Team Balance
Click the Bulk edit Approver & 'CC Notifications to' button
The popup window shows all employees and their assigned leave types, to which you can edit the approvers and whom to be notified.
You may also search a specific employee by their name or designation in the search box.
Under the Approver header, click the dropdown list to pick the approver for that employee's leave type.
Under Cc Notifications to, click the empty field box to select the employees to be notified.