Select the category to bring up the item customer wants and ring up the item.
Select the modifiers the customer wants and press the done button.
If modifier is not set for "force modifier", you may have to press modifier button to bring up modifier options.
To remove the existing modifier from an item, simply go to modifer options screen and deselect them and press done button.
If you need a temporary modifier while you are doing sales, you can use "TEMP MODIFIER".
Input name for the temporary modifier.
To change price, click on price of the temporary modifier and input when number pad prompts up.