Absence Management: Need a step wise guidance to transfer leave balance

Summary:

I need step-by-step instructions to transfer the absence balance of employees from the old absence plan to the new one. There is a business requirement to split the USA Absence Plan into two parts based on the home location of the USA employees:

a. California Absence Plan (only)
b. Rest of USA (all states except California)

Currently, all employees are enrolled in the Rest USA absence plan. Please provide detailed instructions on how to move California employees to the new "California Absence Plan" along with their old absence balances.

Content (please ensure you mask any confidential information):

I refer the below note but it doesn't provide more step wise detail.