The Point of Sale module comes with a cash register drawer and small receipt printer to enable the computer
workstation to act similar to a cash register.
The Walk-In window is used much like a cash register button, where each line represents a quick purchase. Additional
quantities are added to a line item with the double click of a mouse. Additional line items can be quickly added
to the invoice. This enables the user to sell entry to a free swim, for example, very quickly, where there may
be different rates for a full family versus two students.