You can use quick extend by right-clicking on the corresponding Wokstation. Note: Quick extend are not available if its already Free Time or unlimited Time.
You can Downgrade the Time Limit by clicking on the corresponding Wokstation and then click change limit button. It can also use for Upgrading Time Limit.
That you can modify or override the Amount Registered by double clicking the entry on the Table List and Enter your Admin User Name and Password.
When Reseting User Income, the data is not actually deleted, it will only transfer to permanent Database and can be viewed again in Sales Report. Sales Report are only available for administrator account.
Use Auxilliary for recording other Product sales or Services. 
You can specify a different rate for member or use special rate for specific day of the week. To access rate just click on menu FILE and then PREFERENCE.
Auto Unpause will automatically resume time counting in case you forgot to manually unpause the time of the corrrespongding workstation. To activate Auto Unpause, click menu AUTOMATION > AUTOMATION SETUP  and then choose the desire time ( in minutes).
That Administrator can modify priviledge access to end-user level. Click on the User Account > Security setup then check access that you want to give to end-user level.
You can use membership utility to track the usage of frequent customers and give corresponding points for their usage.