Cash_Force_Option
Default Cash_Force_Option = No
When taking a payment you are prompted for the payment type; witht he common option assigned a numner (1-9) e.g.
By default, you can enter a number OR freehand text of the payment type is
not one of the options. Setting Cash_Force_Option = Yes then users are not permitted to use the freehand text option. The 'D'iscount and 'S'urcharge options
will still work.
