Allows you to change the quantity of an item if selling more than one of the same item.
Dept is short for Open Department. This allows you to sell a none stock item.
Find is product search. If the barcode is damaged/missing you can use find to find the item you wish to sell. Depending on your setting you can be taken to the following either search screens.
Hold is where you can hold a transaction to resume later. For example you scan and bag all the items up, but the customer has left there purse in the car. You can hold the transaction so when they return you can pull the held transaction back up. Please note this does not remove the item from stock.
Resume is where you would resume a transaction that was put on hold.
Stock allows you to check stock of the item from the POS.
Void allows you to remove items of the transaction screen before finalising the sale.