To add notes in the payslip for specific employees or general,  

Please navigated to Power pay>> Pay Cycles>>Pay Cycles. Select the paygroup and the pay year and "submit"

Expand the cycle that you would like to add the message with the plus (+) sign and select between the options: 

1. Pay group pay slip message: This is a message for the entire  pay group

2. Employee payslip message: This is a message for a specific employee.  

If you choose the option 1, please select a new record and enter the message. Save the record with the icon  

if you choose the option 2.  

Select the company, Badge number fo the employee, last name and fist name, enter the message and save with the icon   

This message will appears when you generate the payslips