When a product with options is created, by default the admin console selects one of the options to be selected. This can be seen on POS when the cashier selects the item to be added to the basket.
Administrators can decide that no option should be selected by default. To do this, the following steps should be followed:
Create the products and create the options
Locate the product option that has been set to default, it should be green
Place the mouse on the default button without clicking. it should turn red
Click on the default button and it will be changed to Make Default just like the other options on the list
Result on POS when the option has one selected as default
Result on POS when no option is made as a default selection.