To add a portion count to a product, follow these steps:
Long press on the product in the menu.
In the popup box enter the number of portions available by the number popup box or by pressing Add portions.
Click Apply.
Press X.
As each product is added to an order, the small counter in the bottom left corner of the product icon will show how many portions remain available. When the portion count reaches zero, the product will appear greyed out and will be unable to be added to an order.
To reset the portion count, do one of the following:
Long press the product and press Add portions.
Long press the product and press Reset portions.
