mygroundforce release 1.86 has introduced the checkbox Payroll According to Entity Payment Options. When enabled, this checkbox will let mygroundforce Payroll Module calculate payroll for the employee in question according to what is set up in the Entity Payroll Settings. 

To access it go to an employee record on Employees Registry > Edit > Payroll Settings

This feature is also available in the Employee Registry Import Feature, when 'Yes' is selected, this checkbox will be automatically enabled to the imported Employees.