How to hide the Selling Price Group in POS window to all cashiers?

A Selling Price Group is a pricing strategy used in retail and e-commerce businesses that allows for products to be grouped together and sold at different prices based on various factors such as customer segment, location, or quantity purchased.

In add/edit roles you can set which all selling price groups will be visible to that role. So in the cashier role, you can uncheck/remove permission for all other selling price groups except the one you want to show or use for the cashier.