After starting a new order by tapping the + button and entering a table and party size, verify that a seat is selected at the top, then use the menu to begin entering items.
If the item selected has modifiers, enter the modifier choice (or choices, depending on the item), as shown on the first screen.
If you fail to meet the requirements for modifiers, the item will show a red warning above it (on the second example screen).
Once the modifier requirements are satisfied, as shown in the third example screen.
You can continue entering items for the seat by pressing the Clipboard button to bring the menu back up.
If you add an item to a seat by mistake, you can remove the item from the seat by swiping to the left and tapping on the Trash icon.
Once you have completed entering items, you are ready to send the order.