POS Quickpad

I want to add a button to a Quickpad for "Switch User" but do not find it in the POS function list. Does anyone know a way to allow cashiers to quickly sign off when they switch registers?

-- Owner of retail store

I want to add a button to a Quickpad for "Switch User" but do not find it in the POS function list. Does anyone know a way to allow cashiers to quickly sign off when they switch registers?

-- Owner of retail store