Login as another user. Impersonate another user.
Use Manual Currency Exchange Rate in Journal Entries & Payments
Only allow access to selected POS shops for Odoo user
Deliver from Different Locations in POS Shop
Restrict Global Discount in each POS shop to selected employees.
Limit Global Discount % in each POS Shop
Employee wise return restriction in POS
Configure & Pass Analytic account for Sales & Invoices in POS