Card: Employee - Standard Pay - based on Employment Status (i.e. casual no standard pay)

WHY, WHY, WHY does myob generate a standard pay for all employees? 

A casual or part time employee does not work standard hours each week, sometimes none. 

I know how to override this, but I don't understand why this is a fixed feature. It has caused me on several occassions to inadvertently overpay staff, as whenever you change anything in the payroll it re- sets the standard pay.

Can this not be an option instead ?

I have seen many posts from people with the same issue, going back for years, yet it is still under review. Why has this feture not been amended?

"standard pay"