I can walk you through the process of changing the pay schedule, gbobadilla.
We can go to the employee's profile and edit it from there. You can follow these steps:
- Go to the Payroll tab and select Employees.
- Select the employee and click Edit employee.
- Click the drop-down arrow under the How often do you pay... question.
- Choose the desired pay schedule and select Done.

You may also read this article on how to set up payroll. Additionally, here are some of the links you can check about running payroll in QuickBooks Online.
I'll be here if you have more questions. Have a great day!