Hello info361,
Welcome to the Community - thank you for your question!
It sounds like you are using the Standard Payroll in which currently you can have a weekly or monthly payroll schedule - you will need to be moved to our Advanced system to run a 4 weekly payroll. You can do this by contacting our support line via 0808 234 5337. They will be able to raise this to the engineers to get you switched over.
Thanks,
Talia