Question :
Modifier such as additional ingredient, larger cupsize, add eggs.
May also add charges to regular prices. How do I set those surcharge on modifier?
Solution :
Login POS 5 Backend > Point of Sale > Maintenance > Fast Selection Menu Maintenance,
Select a menu then click on Modifier Design button.
Then select a category and click at Design Modifier Details
Look into the column of Sur Charge, key in surcharge value, Save it and then perform speed sync from your terminal.
Re-login F&B system, the related modifier item will have surcharge.