Why are we not able to adjust the begin date of the payroll period?

[Real Business Solutions]

The demo version of Payroll Mate, payroll check software, has all of the features of the full version except for the ability to back-date a check, the ability to create more than 3 employees and  changing the name of the sample company.  Those features are available in the full version.  You will be able to create unlimited employees, create up to 10 companies and go back to the first of the year to recreate payroll.