Manually searching a product in your register will set the quantity as 1. Any barcode scanned will add whatever the barcode quantity is for that barcode, the steps below show how to apply a different quantity to a product.

Method 1: 

1.  Before scanning a product, type the number you would like to apply to the product 
   
2. Now scan the product, this will apply the amount you inputted to the scanned product

Method 2:

Once you have a product loaded in your register you can increase and decrease the product quantity by selecting the + and - keys on your register 

Method 3:

Click on the quantity to open the number pad. You can use the touchscreen to click the numbers or type the new quantity with your keyboard.