@Drew_Mike, I do not understand what you are asking. As I wrote in my first response, there is no such function as whatever you keep calling “NEW PAYMENT AUTOFILL.”
Regardless of how many salary payable accounts you create, as I already told you, amounts payable from payslips will be posted to the control account to which an employee is assigned. That has nothing to do with the number of employees or manual completion of payslips.
I am beginning to think, however, that what you are actually asking about is bulk processing of payroll, by which you would avoid the need to create payslips and record payments individually. Manager has no bulk processing features.