Technical Note: 20090113005
Disable Service Removal
(Maitre'D 8.00.000.057 and later versions of Maitre'D)
You can hide the WITHOUT SERVICE button on the print check screen of
invoices that include a service charge.
By default, employees can cancel a service charge on request at the
workstation.
P.O.S. Control / Employees / Configuration / Invoice / Tax-Service
Disable Service Removal:
Enable this option to forbid these employees to cancel a service charge.

Note: The Service option above must also be enabled.