I've installed the Payslip App, gone through some documentation, and watched a few tutorials. However, I'm still struggling to figure out how to create a one-time payslip.

By "one-time payslip," I mean a non-recurring payment where the total amount is manually entered, since it doesn't follow any standard calculation or formula.

Could someone please guide me on how to implement this? I'd really appreciate any help. Thanks in advance!