The restaurant which serves items by ingredient has a weighing section.
After taking order and selecting items by ingredient, the waitstaff/cashier wants to send weighing request to weighing staff, please follow these steps:
On Order screen, select items by ingredient, check Require to weigh this item and enter quantity; then select items made by that ingredient and enter quantity for each item, touch OK.
After selecting item made by ingredient, this item has quantity by 0.
After order is saved, weighing request will be sent to weighing staff.